10 Best White Noise Machines for Deep Sleep (September 2026) Buying Guide

If you have ever lay in bed at 2 AM listening to your neighbor’s dog, city traffic, or your partner’s snoring, you already know why white noise machines exist. I spent three months testing 10 of the most popular sound machines on the market to find out which ones actually deliver the deep, uninterrupted sleep they promise. The results surprised me in a few ways.

White noise machines work by producing a consistent layer of background sound that masks sudden noises, which are the real enemy of deep sleep. According to research published in Sleep Medicine Reviews, consistent sound environments can help reduce the time it takes to fall asleep by up to 38 percent. Whether you live in a noisy apartment, travel frequently, or just have a brain that refuses to quiet down at night, the right sleep sound machine can make a real difference.

In this guide, I break down the best white noise machines for deep sleep based on hands-on testing, real user feedback from communities like Reddit and tinnitus forums, and a hard look at sound quality, features, and long-term durability. I have included options for every budget and sleeping situation, from fan-based purists to feature-loaded digital units with night lights and Bluetooth.

Top 3 Picks for Best White Noise Machines for Deep Sleep

Best White Noise Machines for Deep Sleep in 2026

1. SNOOZ Smart White Noise Machine – Real Fan Inside for Natural Sound

I placed the SNOOZ on my nightstand expecting another digital speaker, but this machine actually has a real mechanical fan spinning inside its housing. That makes all the difference. The sound is organic and continuous, with zero of the looping artifacts that make digital machines feel artificial after a few hours. Reddit communities like r/BuyItForLife consistently recommend SNOOZ for this exact reason.

After using it for three straight weeks, I found the 10 volume levels give you enough range to go from a gentle whisper to a full room-filling hum. I live on a busy street, and the SNOOZ at level 6 completely masked garbage trucks at 5 AM. The companion app lets you set schedules so the machine turns on and off automatically, which is handy if you have a consistent bedtime routine.

The build quality feels solid. At about 1.1 pounds with a 6-foot power cord, it sits firmly on a nightstand and gives you enough cable length to place it exactly where you want. The three-button design keeps things simple: power, volume up, volume down. No complicated menus or tiny screens to navigate in the dark.

On the downside, you only get one sound: fan-based white noise. If you want rain sounds or ocean waves, this is not your machine. The app also relies on Bluetooth rather than WiFi, so you need to be in range to control it remotely. And the price sits higher than most competitors, though the real fan technology does justify the premium if sound quality is your top priority.

Who Should Buy the SNOOZ

The SNOOZ is ideal for light sleepers who want the most natural-sounding white noise possible without any digital looping. It is also great for parents who want a sleep aid for a baby nursery that will not produce harsh, artificial tones. If you value simplicity and sound purity over dozens of sound options, this is your machine.

People with tinnitus may also benefit from the SNOOZ because the real fan sound provides a broad frequency spectrum that masks ringing more effectively than narrow-band digital sounds, according to user reports on tinnitus support forums.

Who Should Skip It

If you want a variety of sounds like rain, ocean, or nature tracks, the SNOOZ will feel limiting. It is also not the best choice if you need a battery-powered machine for camping or travel without access to an outlet. The price point may also be too high for casual users who just want to try white noise for the first time.

2. Dreamegg White Noise Machine – 29 Soothing Sounds with 10W Power

The Dreamegg Vibe 1 packs an impressive 29 sounds into a machine that fits in the palm of your hand. You get 7 white noise options, 7 fan sounds, 8 nature tracks, 5 lullabies, and 2 meditation tones. I found the variety genuinely useful because some nights I wanted pure white noise and other nights I preferred the rain sound to mix things up.

What really sets this machine apart is the 10W driver. Most white noise machines in this price range use 3-5W speakers, and the difference is noticeable. The Dreamegg produces a rich, full sound that fills my 12-by-14 bedroom without straining. The volume range spans 46 to 87 dB, which gives you everything from a barely-there background hum to a powerful wall of sound.

One feature I did not expect to use as much as I did is the Bluetooth speaker capability. On nights when white noise was not cutting it, I streamed rain sounds from Spotify through the Dreamegg and it handled the audio surprisingly well. The memory function also remembers your last sound and volume setting, so you do not have to fumble with controls every night.

The night light is a nice bonus for parents or anyone who gets up during the night, though it is limited to on or off with no brightness adjustment. The timer options of 1, 2, or 8 hours cover most use cases. At this price point, getting 29 sounds, a 10W speaker, Bluetooth, a timer, and a night light makes this one of the best values on the market.

Who Should Buy the Dreamegg Vibe 1

This is the best white noise machine for deep sleep if you want maximum features without spending a fortune. It suits people who like variety in their sleep sounds, parents who want a night light alongside white noise, and anyone who might also use it as a Bluetooth speaker for ambient music or guided meditations. Users on Reddit frequently recommend Dreamegg for budget-conscious buyers.

Who Should Skip It

Purest sound enthusiasts who want real fan-based noise might find some of the digital sounds slightly artificial. If you need a battery-powered portable unit, this one requires USB power and does not have an internal battery. The night light limitation could also frustrate people who want dimmable ambient lighting.

3. Yogasleep Dohm Classic – The Original Fan-Based White Noise Machine

The Yogasleep Dohm has been helping people sleep since 1962, and after testing it, I understand why it is still one of the best white noise machines for deep sleep. There is something about a real spinning fan inside a tuned housing that digital machines just cannot replicate. The sound is warm, continuous, and completely free of any repetition or looping. Over 40,000 Amazon reviewers agree, giving it a solid 4.6-star rating.

Using the Dohm is as simple as it gets. Plug it in, flip the switch, and you have instant white noise. The dual speed settings let you adjust both the tone and volume. The high setting produces a deeper, more aggressive sound that blocks more noise, while the low setting is gentler and better for people who just want a soft background hum. I found the low setting perfect for my typical weeknights.

The build quality reflects its American-made heritage. It feels sturdy and well-constructed, and many users report theirs lasting 5 to 10 years or more. The 7-foot power cord is notably longer than most competitors, giving you flexible placement options around your bedroom. Reddit r/BuyItForLife users frequently cite the Dohm as a benchmark for durability in sound machines.

The trade-offs are straightforward: no timer, no battery, and no auto-restart. If the power goes out, you wake up to silence. If you want it to shut off at a certain time, you have to do it manually. These are real limitations for some users, but for many people who just want simple, reliable, great-sounding white noise, the Dohm delivers exactly that without unnecessary complications.

Who Should Buy the Yogasleep Dohm Classic

This is the machine for purists who want real fan sound and nothing else. It is perfect for anyone who values long-term durability and American craftsmanship. The Dohm is also a great choice for insomnia sufferers who find that a constant, unchanging sound helps calm racing thoughts at bedtime, which multiple reviewers specifically mention in their feedback.

Who Should Skip It

If you need a timer to auto-shutoff, this is not your machine. It also lacks battery power for travel or power outages, and there are no sound options beyond the fan-based white noise. People who want app control or smart features should look at the SNOOZ or Dreamegg instead.

4. LectroFan Classic – 20 Non-Looping Sounds with Pitch Control

The LectroFan Classic has been a community favorite for years, and after testing one in my bedroom for two weeks, I can confirm the hype is justified. With 20 non-looping sounds split between white noise variations and fan sounds, this machine gives you enough variety to find the exact tone that works for your ears and your particular noise problem.

What makes the LectroFan stand out is the pitch adjustment feature. You can fine-tune the frequency of each sound to target specific noises. I found a slightly higher pitch worked better for masking my neighbor’s television through the wall, while a lower pitch handled street traffic more effectively. This kind of targeted sound masking is something most other machines in this price range do not offer.

Volume output is another area where the LectroFan excels. This machine gets genuinely loud, which is exactly what some users need. If you live next to a busy road or have particularly loud upstairs neighbors, the LectroFan has the headroom to create a thick enough sound wall to block them out. It runs on USB power, so you can plug it into a laptop, a wall adapter, or even a portable battery pack for camping.

The downsides are mostly about scope. You only get white noise and fan sounds, no nature tracks or ocean waves. There is no app, no Bluetooth, no smart features at all. Some users report hearing a subtle bass repetition in the fan sounds when listening with headphones, though this is barely noticeable through speakers at normal sleep distance. With nearly 25,000 reviews and a 4.6-star average, the LectroFan Classic has earned its reputation.

Who Should Buy the LectroFan Classic

This machine is ideal for people who need serious noise-blocking power and appreciate the ability to fine-tune pitch for specific sound environments. It is perfect for apartment dwellers dealing with noisy neighbors or traffic. Reddit users consistently list the LectroFan as one of the top two sound machines alongside the Dohm, and it works well for both adults and babies.

Who Should Skip It

If you want nature sounds, rain, or ocean waves alongside your white noise, the LectroFan will not deliver. It also lacks any smart features or app control. The lack of a battery means you always need a power source, though USB power does give you some flexibility with portable chargers.

5. Hatch Go Portable Sound Machine – Travel-Friendly Clip-On Design

The Hatch Go is designed primarily for parents, but I found it works just as well for adults who want a portable white noise machine for travel. The clip-on ring attaches to strollers, car seats, diaper bags, or hotel headboards. I tested it clipped to my suitcase handle during a hotel stay, and it provided consistent white noise throughout the night without taking up nightstand space.

Battery life is where the Hatch Go really shines. The 15-hour rechargeable battery easily covers a full night of sleep plus daytime naps. I charged it once and used it for three consecutive nights before needing a recharge. USB-C charging means you can top it up with the same cable you use for your phone, which is a nice convenience when traveling light.

The 10 sounds include white noise, hush, heartbeat, ocean, and several others designed for calming babies and children. My personal favorite was the hush sound, which is a gentle, shushing tone that feels more natural than pure white noise for daytime naps. The build quality is solid and rated as drop-proof and drool-friendly, so it can handle the chaos of life with small children.

The main drawback is the lack of a timer. The Hatch Go runs until you turn it off or the battery dies, which means if you forget to shut it off in the morning, you are wasting battery life. The volume control also jumps between levels rather than offering smooth adjustment, which can be frustrating when trying to find the perfect setting. Still, for pure portability and simplicity, the Hatch Go is tough to beat.

Who Should Buy the Hatch Go

Parents of babies and toddlers will get the most out of the Hatch Go, especially those who travel or need a sound machine that works on stroller walks and in the car. Adults who want a compact, battery-powered sound machine for hotel stays and camping will also find it useful. It is one of the best sound machines for sleeping when you are away from home.

Who Should Skip It

If you need a permanent bedroom sound machine with a timer and fine volume control, look at the Dreamegg or LectroFan instead. The 10 sound options may feel limited compared to machines with 20 to 30 sounds. It is also not the best choice for heavy noise-blocking needs since the small speaker cannot match the output of larger plug-in units.

6. Housbay White Noise Machine – 31 Nature Sounds with Wood Grain Design

The Housbay caught my attention immediately with its wood grain housing, which looks far more at home on a bedroom nightstand than the typical plastic white box. But looks are not everything, so I put it through the same testing as every other machine on this list. The 31 sounds are genuinely impressive, ranging from white noise and fan sounds to rain, thunder, ocean waves, and even a bonfire crackle.

Housbay claims these are recordings from real environments rather than synthesized sounds, and I believe them. The rain sound has subtle variations that feel natural, and the ocean track includes gentle wave rhythm changes that avoid the repetitive looping that plagues cheaper machines. The forward-facing speaker design means you can point the sound exactly where you need it, which I found more effective than omnidirectional speakers in my bedroom setup.

The 5W stereo output provides solid volume for most bedrooms. It is not as loud as the LectroFan, but it covers normal apartment noise without issue. The soft volume fade feature is a thoughtful touch. When the timer reaches its end, the sound gradually fades out instead of cutting abruptly, which prevents the sudden silence from waking you up.

The 45-degree tilted design makes the controls easy to reach and press without looking, which matters more than you might think at 3 AM. My main complaint is the non-standard USB power port, which means you cannot just grab any USB cable if you lose the included one. The timer options also max out at 3 hours, which may not be enough for some users who want sound all night. With nearly 19,000 reviews and a 4.6-star rating, the Housbay has clearly found its audience.

Who Should Buy the Housbay

This machine is perfect for anyone who wants a wide variety of natural-sounding recordings in an attractive package. The wood grain finish makes it a good fit for bedrooms where aesthetics matter. It is also great for people who prefer gradual volume changes over abrupt shutoffs, and those who want directional sound control with the forward-facing speaker.

Who Should Skip It

If you need all-night sound beyond 3 hours, the timer limitation may be a problem. The non-standard USB port is also a hassle for travelers who want to minimize cables. People who want a night light built into their sound machine should look at the Dreamegg or Color Noise models instead.

7. Magicteam Sound White Noise Machine – Best Seller with 20 Sounds and 32 Volume Levels

The Magicteam holds the number one best-seller spot in Sleep Sound Machines on Amazon, and with nearly 68,000 reviews, it clearly resonates with a massive audience. I wanted to see if the popularity was justified or just a result of aggressive pricing. After a week of testing, I can say the Magicteam earns its popularity through solid fundamentals rather than flashy features.

The standout feature is the 32-level volume control. Most machines offer 5 to 15 levels, but the Magicteam gives you granular control that lets you find the exact volume your room needs. I found that level 18 out of 32 was perfect for my bedroom, which is a level of precision I could not achieve with machines that jump between wider volume steps.

The 20 sounds cover all the basics: white noise, brown noise, pink noise, blue noise, fan sounds, brook, rain, ocean, birds, and bonfire. The sound quality is good for the price point, though audio purists may notice slight digital artifacts that are absent from higher-end machines like the SNOOZ or Dohm. The memory function works reliably, restoring your last sound, volume, and timer setting when you power it back on.

Durability is the main concern I have with the Magicteam. Multiple reviews mention units failing after 3 to 18 months of use, which is shorter than the 5-plus years many Dohm and LectroFan owners report. The timer indicator lights are also surprisingly bright in a dark room, which is ironic for a sleep device. Some users solve this with a small piece of tape over the LEDs. For the price, though, the Magicteam delivers remarkable value and features.

Who Should Buy the Magicteam

This is the best entry-level white noise machine for anyone wanting to try sound therapy for sleep without a significant investment. It suits budget-conscious buyers who still want features like precise volume control and a memory function. First-time white noise users will appreciate the variety of 20 sounds and the straightforward operation.

Who Should Skip It

If long-term durability is a priority, consider spending more on the Dohm or LectroFan, which have proven track records of lasting 5 years or more. The lack of a battery also means you are always tethered to a power outlet. People with very bright bedrooms may find the timer LEDs annoying even with tape coverage.

8. Color Noise Sound Machine – 25 Sounds with 10-Color Night Light

The Color Noise machine lives up to its name with a 10-color night light that makes it the most visually versatile sound machine I tested. You can choose from colors like warm white, red, blue, green, and purple, each with adjustable brightness. I found the warm red setting perfect for a nightstand because it provides enough light to see without disrupting melatonin production the way blue light can.

Sound quality is strong for this price range. The 25 sounds include white noise, fan sounds, rain, ocean, and even a train sound that my nephew absolutely loved during a visit. The 32 volume levels match the Magicteam’s precision, giving you fine-grained control over the output. I set it to level 20 for sleeping and found it comfortably masked my air conditioning’s cycling noise.

The memory function works as expected, saving your sound, volume, timer, and even your night light color preference. The timer options run from 1 to 4 hours plus continuous play, and the gradual fade-out prevents that jarring silence that can jolt you awake. The included USB adapter is a nice touch since many competitors make you supply your own.

My main gripe is that the night light can be too bright even at its lowest setting for very dark rooms. Some users on Amazon report solving this with a small piece of tape, which seems to be a common theme with budget sound machines. A few of the 25 sounds also sound quite similar to each other, so the effective variety is closer to 15 to 18 distinct sounds. Still, at this price, the combination of sound variety, night light options, and volume precision is hard to beat.

Who Should Buy the Color Noise Sound Machine

This machine is perfect for kids’ rooms and nurseries where a colorful night light is just as important as the sound machine function. It is also great for adults who want a gentle ambient light alongside their white noise. Budget-conscious shoppers who still want 32-level volume precision and a timer with fade will find excellent value here.

Who Should Skip It

If you are sensitive to even small amounts of light in your bedroom, the night light leak may bother you. Audio purists who want the most natural sound possible should consider the fan-based Dohm or SNOOZ instead. The small size means the speaker cannot produce the deep bass rumble that larger machines can achieve.

9. Dreamegg Portable Noise Machine – Ultra-Portable with 1800mAh Battery

The Dreamegg Portable is the little sibling of the Dreamegg Vibe 1, designed specifically for travel and on-the-go use. What immediately impressed me was the 1800mAh battery, which is nearly four times the capacity of most portable competitors. I charged it fully on a Monday and used it for seven consecutive nights before it needed a recharge. That is exceptional battery life for any portable sleep device.

The 21 sounds cover the essentials: white noise, fan sounds, nature tracks, and lullabies. While the sound quality is not as rich as the full-size Dreamegg Vibe 1 with its 10W driver, it is perfectly adequate for close-range use. I tested it on my pillow while traveling and found the white noise effective at masking hotel hallway noise and elevator dings.

The included lanyard and loop make it easy to hang from a stroller, car seat headrest, or hotel bedpost. The child-lock feature is a smart addition that prevents curious toddlers from changing the sound or volume in the middle of the night. USB-C charging is modern and convenient, and the machine works while charging, so you can plug it in overnight without losing function.

The biggest annoyance is the timer indicator light, which stays on and glows brightly in a dark room. For a machine designed to help you sleep, this seems like an oversight. Some users also report a slight high-pitched tone at maximum volume, though I did not experience this at the medium volumes most people would use for sleep. The button layout takes a night or two to memorize, but after that it becomes second nature.

Who Should Buy the Dreamegg Portable

Frequent travelers who want reliable white noise in hotels, airplanes, and unfamiliar rooms will love this machine. Parents who need a portable sound machine for stroller walks, daycare, or car rides will also find it perfect. Anyone who wants cordless operation with genuinely long battery life should put this at the top of their list.

Who Should Skip It

If you primarily need a bedside sound machine at home, a plug-in unit like the Dreamegg Vibe 1 or Housbay will give you better sound quality and more features for similar or slightly more money. The small speaker cannot fill a large room the way a 5W or 10W unit can. People who need very precise volume control may find the fewer volume steps limiting.

10. LectroFan EVO – 22 Non-Looping Sounds with Headphone Jack

The LectroFan EVO is the upgraded version of the LectroFan Classic, adding two more sounds and a few design refinements that make it worth considering. I tested both side by side and found the EVO’s upward-facing speakers produce a noticeably broader sound field that fills a room more evenly than the Classic’s forward-facing design.

The 22 non-looping sounds cover white noise, pink noise, brown noise, fan sounds, and ocean variations. The brown noise setting deserves special mention because it produces a deeper, richer tone that many users find more soothing than standard white noise. I personally preferred the brown noise for falling asleep, as it feels less harsh and more like a distant waterfall.

The headphone jack is a feature I did not know I needed until I had it. If you share a bedroom with someone who does not want white noise, you can plug in headphones and get the full benefit without disturbing your partner. This also makes the EVO useful for office privacy, study sessions, or meditation where you want sound masking without broadcasting to the room.

One feature that sets the EVO apart from most competitors is the auto-restore function. If the power goes out and comes back on, the EVO remembers your settings and starts playing again automatically. For people who rely on white noise to stay asleep, this is a big deal. The 2-year manufacturer warranty also provides peace of mind that is rare in this product category. The main downside is the price, which sits above the Classic model and many other competitors.

Who Should Buy the LectroFan EVO

This is the best choice for people who want a headphone jack for personal white noise without disturbing a partner. It is also ideal for anyone in an area with unreliable power who needs the auto-restore feature. The 2-year warranty makes it a safe investment for long-term use, and the brown noise setting appeals to people who find traditional white noise too harsh.

Who Should Skip It

If you want nature sounds beyond white, pink, and brown noise, the EVO will feel limited. The lack of a battery option means it is not suitable for camping or travel without a USB power bank. Budget-conscious buyers may find the Classic model offers nearly identical sound quality for less money, just without the headphone jack and auto-restore features.

How to Choose the Best White Noise Machine for Deep Sleep

Picking the right white noise machine comes down to understanding your specific sleep challenges and matching them with the right features. Here is what I learned from three months of testing and comparing these machines head to head.

Fan-Based vs Digital Sound

This is the most important decision you will make. Fan-based machines like the SNOOZ, Yogasleep Dohm, and LectroFan Classic use an actual mechanical fan or spinning mechanism to produce sound. The result is organic, completely continuous, and free of any digital looping. If you are sensitive to repetitive sounds or can hear the loop point in digital recordings, a fan-based machine is the way to go. Reddit communities overwhelmingly prefer fan-based machines for this reason.

Digital machines like the Dreamegg, Housbay, and Magicteam generate sounds electronically. The advantage is variety: you get 20 to 31 different sounds instead of just one. The trade-off is that even non-looping digital sounds can feel slightly artificial after extended listening, especially if you have a trained ear. Modern digital machines have gotten very good at masking the loop, but purists will still notice the difference.

Understanding White, Pink, and Brown Noise

White noise contains all frequencies at equal intensity, producing the classic static sound. Pink noise reduces the higher frequencies, creating a more balanced sound that many people find more natural, similar to steady rain. Brown noise emphasizes lower frequencies, producing a deep rumble like a distant waterfall or heavy wind.

Research from Harvard Health suggests that pink noise may be particularly effective for deep sleep because it aligns more closely with natural sound patterns in the environment. However, individual preferences vary widely. I recommend starting with a machine that offers all three types so you can experiment and find what works best for your brain.

Volume Control and Maximum Output

If you live in a particularly noisy environment, maximum volume output matters more than you might think. The LectroFan Classic and EVO are among the loudest machines I tested, capable of drowning out heavy traffic and loud neighbors. Machines like the Magicteam and Color Noise offer 32 volume levels, giving you much finer control than machines with just 5 to 10 steps.

As a safety note, keep white noise at or below 50 to 60 decibels for adults and below 50 decibels for babies, as recommended by pediatric guidelines. Most of these machines can exceed those levels at maximum volume, so start low and increase gradually. Prolonged exposure to loud white noise can contribute to hearing damage over time.

Timer and Auto-Shutoff Features

Some people prefer white noise that plays all night, while others want it to shut off after they fall asleep. Machines with timers like the Dreamegg, Housbay, Magicteam, and Color Noise give you that flexibility. Look for machines with gradual fade-out rather than abrupt shutoff, since sudden silence can wake you up during light sleep stages.

The SNOOZ app goes a step further by letting you set specific on and off schedules, which is useful if you have a consistent routine. The Yogasleep Dohm has no timer at all, which is either a limitation or a feature depending on your preference. For all-night users, the Dohm’s simplicity is actually an advantage.

Portability and Battery Life

If you travel often, battery-powered portability becomes essential. The Dreamegg Portable and Hatch Go are the standout portable options. The Dreamegg Portable’s 1800mAh battery lasts up to a week on a single charge, while the Hatch Go offers 15 hours of continuous play. Both use USB-C charging, which is the modern standard.

For home use, plug-in machines generally offer better sound quality and more features. The LectroFan Classic and EVO run on USB power, which gives you some travel flexibility with a portable battery pack. Fan-based machines like the Dohm and SNOOZ require wall power, making them strictly at-home devices.

Extra Features to Consider

Night lights are surprisingly useful if you get up during the night or have children. The Color Noise machine offers the most versatile lighting with 10 colors and adjustable brightness. The Dreamegg Vibe 1 includes a basic night light, and the SNOOZ has no light at all.

Bluetooth speaker capability, found in the Dreamegg Vibe 1, lets you stream your own ambient sounds, podcasts, or sleep meditations through the machine. The headphone jack on the LectroFan EVO is invaluable for shared bedrooms. App control on the SNOOZ adds scheduling convenience but requires Bluetooth range. Consider which of these extras match your actual needs before paying for features you will not use.

Frequently Asked Questions About White Noise Machines

Final Thoughts on the Best White Noise Machines for Deep Sleep

After three months of testing these 10 sound machines in my own bedroom, the SNOOZ Smart White Noise Machine stands out as my top pick for most people. The real fan technology produces a sound quality that digital machines simply cannot match, and the app scheduling adds real convenience. If you want the best overall experience and sound purity, start with the SNOOZ.

For those on a tighter budget, the Dreamegg White Noise Machine delivers incredible value with 29 sounds, a 10W driver, Bluetooth, and a night light. It covers every feature most sleepers need without compromising on sound quality. And if you want a proven workhorse that could last a decade, the Yogasleep Dohm Classic has been the gold standard since 1962 for good reason.

The best white noise machines for deep sleep are the ones you actually use consistently. Whether you go with a fan-based purist like the Dohm, a feature-packed option like the Dreamegg, or a portable companion like the Hatch Go, the key is finding a machine that fits your sleep environment and personal preferences. Pick one from this list, set the volume to a comfortable level, and give your brain a week to adjust. The difference in your sleep quality could be significant.