20 Best Soundspa White Noise Machine [2024]

Are you looking for the best Soundspa White Noise Machine? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Soundspa White Noise Machine.

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# Preview Product
1 Homedics SoundSleep White Noise Sound Machine, Silver, Small Travel Sound Machine with 6 Relaxing... Homedics SoundSleep White Noise Sound Machine, Silver, Small Travel Sound Machine with 6 Relaxing...
2 MyBaby SoundSpa White Noise Machine for Babies | 6 Soothing Lullabies for Newborns, Sound Therapy... MyBaby SoundSpa White Noise Machine for Babies | 6 Soothing Lullabies for Newborns, Sound Therapy...
3 MyBaby Baby Sound Machine, White Noise Sound Machine for Baby, Travel and Nursery. 4 Soothing... MyBaby Baby Sound Machine, White Noise Sound Machine for Baby, Travel and Nursery. 4 Soothing...
4 White Noise Machine Raynic Sound Machine Portable Sleep Machine with 24 Natural Soothing Sounds,... White Noise Machine Raynic Sound Machine Portable Sleep Machine with 24 Natural Soothing Sounds,...
5 HoMedics SoundSpa Slumber Scents Alarm Clock, Essential Oil Diffuser & White Noise Machine | 6... HoMedics SoundSpa Slumber Scents Alarm Clock, Essential Oil Diffuser & White Noise Machine | 6...
6 Homedics SoundSleep Ultra-Portable Rechargeable Sound Machine, Small Travel White Noise Sound... Homedics SoundSleep Ultra-Portable Rechargeable Sound Machine, Small Travel White Noise Sound...
7 HoMedics White Noise Sound Machine | Portable Sleep Therapy for Home, Office, Baby & Travel | 6... HoMedics White Noise Sound Machine | Portable Sleep Therapy for Home, Office, Baby & Travel | 6...
8 Homedics Traveler Soundspa White Noise Sound Machine | Baby, Adults, Kids Sleep Machine | Portable... Homedics Traveler Soundspa White Noise Sound Machine | Baby, Adults, Kids Sleep Machine |...
9 Homedics White Noise Sound Machine, Small Travel Sound Machine with 4 Relaxing Nature Sounds,... Homedics White Noise Sound Machine, Small Travel Sound Machine with 4 Relaxing Nature Sounds,...
10 Yogasleep Dohm Classic (White) The Original White Noise Sound Machine, Soothing Natural Sounds from... Yogasleep Dohm Classic (White) The Original White Noise Sound Machine, Soothing Natural Sounds...
11 MyBaby, SoundSpa Lullaby - Sounds & Projection, Plays 6 Sounds & Lullabies, Image Projector... MyBaby, SoundSpa Lullaby - Sounds & Projection, Plays 6 Sounds & Lullabies, Image Projector...
12 Douni Sleep Sound Machine - White Noise Machine with Soothing Sounds Timer & Memory Function for... Douni Sleep Sound Machine - White Noise Machine with Soothing Sounds Timer & Memory Function for...
13 Hatch Restore - Sound Machine, Smart Light, Personal Sleep Routine, Bedside Reading Light, Wind Down... Hatch Restore - Sound Machine, Smart Light, Personal Sleep Routine, Bedside Reading Light, Wind...
14 Pacific Ocean Waves Pacific Ocean Waves
15 Hatch Rest 1st Gen Baby Sound Machine, Night Light, and Time-to-Rise Sleep Trainer, White Noise... Hatch Rest 1st Gen Baby Sound Machine, Night Light, and Time-to-Rise Sleep Trainer, White Noise...
16 Wake Up Light Sunrise Alarm Clock for Kids, Heavy Sleepers, Bedroom, with Sunrise Simulation, Sleep... Wake Up Light Sunrise Alarm Clock for Kids, Heavy Sleepers, Bedroom, with Sunrise Simulation,...
17 Washing Machine, Fill Washing Machine, Fill
18 Magicteam Sound Machines White Noise Machine with 20 Non Looping Natural Soothing Sounds and Memory... Magicteam Sound Machines White Noise Machine with 20 Non Looping Natural Soothing Sounds and...
19 Serene Evolution White Noise Machine for Sleeping Adult or Baby, White Noise Machine for Office... Serene Evolution White Noise Machine for Sleeping Adult or Baby, White Noise Machine for Office...
20 Jack & Rose White Noise Machine Baby, Baby Sound Machine Kids with Night Light, Portable White Noise... Jack & Rose White Noise Machine Baby, Baby Sound Machine Kids with Night Light, Portable White...
SaleBestseller No. 1
Homedics SoundSleep White Noise Sound Machine, Silver, Small Travel Sound Machine with 6 Relaxing...
  • White Noise Sound Machine: The Homedics White Noise Sound Machine includes 6 digitally recorded relaxing sounds designed to mimic the natural...
  • Compact and Portable: This portable sound machine is lightweight, compact, and easily fits into your purse, bag, or suitcase
  • Baby Sleep Aid: Add these rhythmic sounds to your baby’s sleep routine to help them fall asleep faster and stay asleep longer; it makes the perfect...
  • Auto-Off Timer and Volume Controls: Choose to play relaxation sounds on this ambient sound machine continuously or opt for the auto-off timer; the...
  • What’s in the Box: (1) Homedics White Noise Sound Machine, (1) Wall Outlet Adapter, (1) Quick-Start Guide
SaleBestseller No. 2
MyBaby SoundSpa White Noise Machine for Babies | 6 Soothing Lullabies for Newborns, Sound Therapy...
  • 6 Soothing Sounds: Choose from 6 relaxing sounds: Heartbeat, White Noise, Cradle, Ocean, Brook, and Summer Night; the adjustable volume setting allows...
  • Compact & Portable: With a small and lightweight design, it easily fits into your purse, bag, or suitcase; create a familiar sleeping environment for...
  • Help Baby Sleep & Relax: Soothing sounds that mimic the natural environment will help lull your baby to sleep faster and stay asleep longer whether...
  • Auto-Off Timer: The timer features 3 options: 15, 30, or 60 minutes; it can be plugged into a wall outlet with the adapter (included) or powered by 4...
  • What’s in the Box: (1) MyBaby SoundSpa Portable White Noise Machine, (1) AC Adapter, (1) Quick-Start Guide
Bestseller No. 3
MyBaby Baby Sound Machine, White Noise Sound Machine for Baby, Travel and Nursery. 4 Soothing...
  • Soothing Sounds: Helps to soothe and comfort little ones with 4 relaxing sound options; choose between Heartbeat, White Noise, Ocean, or Lullaby to...
  • Auto Shutoff: Designed with safety in mind, the battery-operated SoundSpa is cord-free; auto-off timer conserves energy with 15, 30, or 45-minute...
  • Durable & Portable: Made with durable plastic material (BPA free) to withstand most bumps and tumbles; small and lightweight, it fits conveniently in...
  • Integrated Features: Adjust the volume or choose your sound option directly on the sound machine; integrated clip allows quick accessibility and easy...
  • What’s in the Box: (1) MyBaby Portable SoundSpa; (1) Quick-Start Guide; (1) 90-Day Warranty
SaleBestseller No. 4
White Noise Machine Raynic Sound Machine Portable Sleep Machine with 24 Natural Soothing Sounds,...
  • ♫MULTIPLE NATURAL SOUNDS: This white noise machine is better than a lullaby, it has 24 soothing sounds, including white noise, fan, ocean, chirp,...
  • ♫AUTO-OFF TIMER: The mini noisemaker for sleeping can be set with 15, 30, 60 minutes or continuously. The sound spa includes an adjustable volume...
  • ♫UNIQUE LIGHTWEIGHT DESIGN: The sleep easy sound machine is small and lightweight which is perfect for home and travel use, you can use it wired or...
  • ♫HEADPHONE CAN BE CONNECTED: There is a headphone jack on the machine, you can use a earphone to connect the white noise machine through the jack so...
  • ♫VARIOUS USES: This sound machine emits 24 natural sounds that mask those from the surroundings like noises or disturbances. It is the best choice...
SaleBestseller No. 5
HoMedics SoundSpa Slumber Scents Alarm Clock, Essential Oil Diffuser & White Noise Machine | 6...
  • 6 SOOTHING SOUNDS: Choose from 6 digitally recorded relaxing sounds. Each sound is nature-inspired. Choose to drift off to sleep while listening to...
  • ESSENTIAL OIL DIFFUSER WITH GLOWING LIGHTS: This multi-function Aromatherapy Diffuser/Alarm Clock discreetly mists your dry air with a light, pleasant...
  • SAVE MONEY WITH THIS MULTI-USE DEVICE: When you purchase this SoundSpa device, you’re getting the benefits of 6 different machines. This functions...
  • CUSTOMIZABLE EXPERIENCE: Customize the way you fall asleep, wake up, or relax during the day. Program this diffuser to glow one color, or show an...
  • WHAT’S INCLUDED WITH YOUR PURCHASE: One HoMedics SoundSpa Slumber Scents. One wall outlet adapter. One user’s manual
Bestseller No. 6
Homedics SoundSleep Ultra-Portable Rechargeable Sound Machine, Small Travel White Noise Sound...
  • White Noise Sound Machine: The Homedics SoundSleep Ultra-Portable Rechargeable Sound Machine includes 12 relaxing nature sounds: Fan, Ocean, Energize,...
  • Compact and Portable: This portable sound machine is lightweight, compact, and easily fits into your purse, bag, or suitcase
  • Rechargeable Lithium-Ion Battery: This cordless, 12-sound sleep machine was designed with a rechargeable lithium-ion battery; the battery gets up to...
  • Auto-Off Timer & Volume Controls: Choose to play relaxation sounds on this ambient sound machine continuously or opt for the auto-off timer; the timer...
  • What’s in the Box: (1) Homedics SoundSleep Ultra-Portable Rechargeable Sound Machine, (1) USB Cable, (1) Rechargeable Lithium-Ion Battery
Bestseller No. 7
HoMedics White Noise Sound Machine | Portable Sleep Therapy for Home, Office, Baby & Travel | 6...
  • 6 SOOTHING SOUNDS: Choose from 6 digitally recorded relaxing sounds: White Noise, Thunder, Ocean, Rain, Summer Night, and Brook. The SoundSpa's sounds...
  • COMPACT & PORTABLE FOR TRAVEL: Don’t worry about not sleeping while you travel, the HoMedics Sleep Sound Machine is small and lightweight. It easily...
  • HELPS YOUR BABY SLEEP: Add the SoundSpa Rejuvenate’s rhythmic noises to your baby’s sleep routine to help them fall asleep faster and stay asleep...
  • AUTO-OFF TIMER: The HoMedics Rejuvenate Sleep Sound Machine’s therapeutic sounds can be used for relaxation, sleep, work, travel, study or...
  • WHAT’S INCLUDED WITH YOUR PURCHASE: One HoMedics SoundSpa Rejuvenate White Noise Sleep Machine. One wall outlet adapter. One user’s manual
SaleBestseller No. 8
Homedics Traveler Soundspa White Noise Sound Machine | Baby, Adults, Kids Sleep Machine | Portable...
  • 6 SOOTHING SOUNDS: Choose between 6 relaxing and calming sounds such as Brook, Ocean, White Noise, Soothing Flute, ASMR Tapping, and Thunderstorm. The...
  • COLOR-CHANGING NIGHT-LIGHT: Alternate between the 7 ambient colors with the glowing night-light. Light can be used with or without the sound options.
  • EASY TO OPERATE: Programmable auto-off at 30-. 60-, and 90- minute intervals so you can sleep easy. User-friendly controls make operation simple for...
  • RECHARGEABLE & PORTABLE: Relax for up to 12 consecutive hours per charge and recharge with the included micro USB cable for ultimate portability....
  • WHAT'S IN THE BOX: (1) HoMedics SoundSpa Traveler White Noise Sound Machine (1) Quick-Start Guide, (1) 1-Year Warranty
SaleBestseller No. 9
Homedics White Noise Sound Machine, Small Travel Sound Machine with 4 Relaxing Nature Sounds,...
  • White Noise Sound Machine: The Homedics White Noise Sound Machine includes 4 digitally recorded relaxing sounds designed to mimic the natural...
  • Compact and Portable: This portable sound machine is lightweight, compact, and easily fits into your purse, bag, or suitcase
  • Baby Sleep Aid: Add these rhythmic sounds to your baby’s sleep routine to help fall them asleep faster and stay asleep longer; it makes the perfect...
  • Auto-Off Timer and Volume Controls: Choose to play relaxation sounds on this ambient sound machine continuously or opt for the auto-off timer; the...
  • What’s in the Box: (1) Homedics White Noise Sound Machine, (1) User Manual
Bestseller No. 10
Yogasleep Dohm Classic (White) The Original White Noise Sound Machine, Soothing Natural Sounds from...
  • THE ORIGINAL WHITE NOISE SOUND MACHINE: Beloved by millions since 1962, the Dohm Classic model features our fan-based natural white noise, it produces...
  • CUSTOMIZED SOUND EXPERIENCE: With two speed options for adjustable tone and volume, the Dohm Classic excellently cancels background noise for better...
  • UNBEATABLE QUALITY & GUARANTEE: For over 60 years, YOGASLEEP has been the gold standard in white noise sound machines. Handmade in the USA and backed...
  • SIMPLE TO USE: Powered by an 7-foot 120V AC cord, simply plug in, flip the switch to high or low, then rotate the cap and collar to find the best...
  • CLASSIC DESIGN: Featuring a simple design that blends unobtrusively into surroundings. Also available in white, black, gray, pink, tan, and camo....
Bestseller No. 11
MyBaby, SoundSpa Lullaby - Sounds & Projection, Plays 6 Sounds & Lullabies, Image Projector...
  • 6 Sounds & Songs: Choose from 6 sounds and lullabies: Heartbeat, Gentle Rain, Ocean Waves, Twinkle, Twinkle, Rock-A-Bye Baby, and Cradle Song;...
  • Picture Projector: Choose from 3 images on the included disc to project onto the wall or ceiling; images can function without the sound; the soft glow...
  • Auto-Off Timer: Set the projector for 15, 30, 45, or 60 minutes to help conserve energy; automatically shuts off after 3 hours
  • Perfect for Travel: The MyBaby SoundSpa Lullaby Sounds and Projection is made out of durable plastic and is small and compact; packs easily in any...
  • What’s in the Box: (1) MyBaby SoundSpa Lullaby, (1) Image Disk with 3 Scenes, (1) AC Adapter, (1) Quick-Start Guide
SaleBestseller No. 12
Douni Sleep Sound Machine - White Noise Machine with Soothing Sounds Timer & Memory Function for...
  • 24 SOOTHING SOUNDS: Douni white noise sound machine has 24 total sounds in three different categories:7 Fan sounds; 7 White Noise ;10 Classical Nature...
  • AESTHETICALLY PLEASING & PORTABLE SIZE: Featuring stylish wood grain finish, this sound machine matches any decor at nursery room ; office; bedroom;...
  • TIMER OPINION and MEMORY FUNCTION: The sleep sound machine features a 30, 60 or 90-minute sleep timer, The sleep machine can either play all night or...
  • SUPPORTING 3.5MM EARPHONE and DIFFERENT VOLUME LEVELS: Douni Portable sound machine with a headphone jack allows you to listen privately so you...
  • WHAT’S INCLUDED : Douni White Noise Sound Machine , Power adapter, Power cord ,User Manual . 60-day money back guarantee from the date of purchase...
Bestseller No. 13
Hatch Restore - Sound Machine, Smart Light, Personal Sleep Routine, Bedside Reading Light, Wind Down...
  • Sleep better: Personalize a sleep-wake routine to help you fall asleep, stay asleep & wake up refreshed.
  • Wake up naturally: Gently wake to a custom Sunrise Alarm Clock that supports healthy cortisol levels.
  • Sounds + lights + more: Create a mood any time with a library of soothing sounds, white noise & lights at your fingertips. Relax with a soft-glow...
  • Relax your mind: Enjoy soothing content to help you wind down and prepare your mind & body for sleep. Includes free trial of Hatch Sleep Membership...
  • Control via app or touch: Control with soft-touch buttons on the device, or use the free companion app for iOS or Android. Device requires Wi-Fi and...
Bestseller No. 14
Pacific Ocean Waves
  • Amazon Prime Video (Video on Demand)
  • Mark Knight (Director) - Jim Wilmer (Producer)
  • English (Playback Language)
  • English (Subtitle)
Bestseller No. 15
Hatch Rest 1st Gen Baby Sound Machine, Night Light, and Time-to-Rise Sleep Trainer, White Noise...
  • Bluetooth enabled to control via app when in range.
  • Updated Wi-Fi 2nd Gen version of this product is also available for the same price.
  • Sound machine. Keep your little one dreaming with sounds like white noise, wind, and rain.
  • Night light. Make midnight feedings soothing and the dark less scary with a reassuring, calming glow.
  • Time-to-Rise. Set up this light and sound combination to let your early riser know when it’s time to rise.
SaleBestseller No. 16
Wake Up Light Sunrise Alarm Clock for Kids, Heavy Sleepers, Bedroom, with Sunrise Simulation, Sleep...
  • 【Wake Up Light with Sunrise simulation】 This Sleep Aid digital alarm clock is designed for everyone in fact, especially for heavy sleepers and...
  • 【Dual Alarm Clock & Snooze supported】 Considering you may need to set up different alarms for your family member, we designed 2 alarms for you....
  • 【7 Color Light & 20 Brightness Adjustable】 There are 7 color changing light you can choose, include blue, indigo, purple, red, orange, yellow,...
  • 【FM Radio & 7 Alarm Sounds】It will be a FM Radio just when you press the "Radio" button on the upper right to switch it on. Long press the "FM...
  • 【Night Light & Bedside Lamp】It is also a Bedside Lamp / Night Light / Reading Lamp. It will be a bedside lamp / night light / reading lamp just...
SaleBestseller No. 18
Magicteam Sound Machines White Noise Machine with 20 Non Looping Natural Soothing Sounds and Memory...
  • ❤20 Non-Looping Sleep Sounds: White noise ,Brown noise, pink noise, blue noise, fan,brook, rain, ocean,bird and Bonfire,suitable for for Baby and...
  • ❤Precise Volume & Timer Settings:With 32 Levels of Volume ,it is perfect for baby sleeping .And you can set 1 hour,2 hours,3 hours,4 hours,5 hours...
  • ❤Unique Design: Solid-state design with 6.3 inch*4 inch *2.4 inch,it is portable for home, office or travel,can give you a perfect sleep.
  • ❤Function & Safety:Memory function automatically restores your previous volume, sound and time,it is powered by AC or USB.The machine is approved by...
  • ❤Any issue just don’t hesitate to contact us.We will try our best to help you!
SaleBestseller No. 19
Serene Evolution White Noise Machine for Sleeping Adult or Baby, White Noise Machine for Office...
  • WIRELESS REMOTE CONTROL: This Serene Evolution Sound Machine has touch sensitive buttons on the unit and comes with a remote that works up to 50ft...
  • OPTIONAL TIMER: Leave on all night or set a timer for 30, 60 or 120 minutes. The sound machine also recalls the last sound and volume setting.
  • POWER SOURCE: Powered by AC adapter (included).
  • PERFECT FOR LIGHT SLEEPERS & OFFICE PRIVACY: Mask background noises like barking dogs and snoring for improved sleep. Sounds mask private...
  • 60 SOOTHING SOUNDS: 13 fan, 5 brown noise, 4 pink noise, 3 white noise, 4 ocean waves, 3 rain, thunderstorm, brook, shower, waterfall, rain forest,...
SaleBestseller No. 20
Jack & Rose White Noise Machine Baby, Baby Sound Machine Kids with Night Light, Portable White Noise...
  • WHITE NOISE MACHINE BABY: With its fetal heartbeat sound, our baby sleep sound machine mimics the sound of a mother's womb, which helps newborn babies...
  • 16 HIFI SOOTHING SOUNDS: Imagine a trip through the forest on a summer night. In addition to the chirping of insects and birds, you can hear the ocean...
  • SLEEP MACHINE: Our sleep sound machine provides you with colorful nighttime care using its unique seven-color night light. It has been proven that...
  • TIMER AND MEMORY FUNCTION: The sleep sound machine can play continuously or has an automatic shut-off timer for 15, 30, 60, 90, or 120 minutes. Set a...
  • TURN YOUR BEDROOM INTO A SLEEP SANCTUARY: This thoughtful white noise machine is designed to shield you from noisy neighborhoods, noisy car whistles,...

Having trouble finding a great Soundspa White Noise Machine?

This problem is well understood by us because we have gone through the entire Soundspa White Noise Machine research process ourselves, which is why we have put together a comprehensive list of the best Soundspa White Noise Machines available in the market today.

After hours of searching and using all the models on the market, we have found the best Soundspa White Noise Machine for 2023. See our ranking below!

How Do You Buy The Best Soundspa White Noise Machine?

Do you get stressed out thinking about shopping for a great Soundspa White Noise Machine? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Soundspa White Noise Machine, which is why we have assembled a comprehensive list of the greatest Soundspa White Noise Machine available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Soundspa White Noise Machine that you consider buying. Your questions might include the following:

  • Is it worth buying an Soundspa White Noise Machine?
  • What benefits are there with buying an Soundspa White Noise Machine?
  • What factors deserve consideration when shopping for an effective Soundspa White Noise Machine?
  • Why is it crucial to invest in any Soundspa White Noise Machine, much less the best one?
  • Which Soundspa White Noise Machine are good in the current market?
  • Where can you find information like this about Soundspa White Noise Machine?

We’re convinced that you likely have far more questions than just these regarding Soundspa White Noise Machine, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Soundspa White Noise Machine, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Soundspa White Noise Machine. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Soundspa White Noise Machine buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Soundspa White Noise Machine currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Soundspa White Noise Machine has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Soundspa White Noise Machine?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Soundspa White Noise Machine.
  5. Customer Ratings: Number ratings grade Soundspa White Noise Machine objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Soundspa White Noise Machine.
  7. Product Quality: You don’t always get what you pay for with an Soundspa White Noise Machine, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Soundspa White Noise Machine is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Soundspa White Noise Machine information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Soundspa White Noise Machine is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the best white noise machine?

A: Best White Noise Machines 1 Best Overall – Hatch Restore 2 Best Value – LectroFan White Noise Sound Machine 3 Best Features – Brookstone Sound Soother 4 Best Travel Option – HoMedics SoundSpa 5 Best Easy to Use White Noise Machine – Marpac Dohm White Noise Machine 6 Best for Babies and Young Children – Hatch Baby Rest Sound Machine More …

Q: How does the soundspa work?

A: The SoundSpa is a simple, easy-to-use white noise machine. It provides a choice of 12 sounds, including white noise, electric fan sounds, relaxing music tracks, and natural sounds, like ocean, campfire, and rain. Users select sounds through a dial that surrounds the central speaker, while small buttons control power, timer settings, and volume.

Q: What is a lectrofan White Noise Sound Machine?

A: This LectroFan White Noise Sound Machine offers ten white, pink and brown sounds, ten fan sounds and two ocean sounds — “calm” and “surf” — all of which are non-looping, explained Stein. “It includes a connector for headphones or a portable speaker and has an optional timer,” she added.

Q: What is white noise and how does it work?

A: White noise is produced by randomly generating noise across the entire sound spectrum, and sounds similar to radio static or an untuned TV. In fact not everyone find this sound relaxing, so many so-called ‘white noise machines’ also produce other sounds like pink noise and brown noise, which are similarly random but less harsh on the ears.