Nightwool: Sleep Sounds & Rain

Sleep sounds that feel real, all night long: rain, ocean waves, white noise, brown noise and more, with a sleep timer that fades out gently.

Nightwool plays real recordings of rain, ocean waves, a river, crickets, a crackling fire, a night train and more. Each recording plays in shuffled parts with soft crossfades, so there's no short, obvious loop. White noise, pink noise, brown noise and the other noise colors are generated on your phone.

33 sleep sounds
• White noise, pink noise, brown noise, deep brown noise, green noise, blue noise and violet noise
• Rain sounds: rain, rain on a tent, a roof or a car, and thunderstorm sounds with thunder that fades in
• Nature sounds: ocean waves, river, wind, forest birds, crickets, cicadas and frogs
• Home and travel: fan noise, air conditioner, dryer, shower, fireplace, cat purring, train, airplane cabin and a night drive
• Heartbeat with adjustable BPM, shush and a music-box lullaby
• Plus 432 Hz and 528 Hz tones

A noise machine you can mix
• Layer sounds, each with its own volume; most also have a tone control, and thunder has a distance setting
• 10 ready-made mixes, such as Rainy Night, Cabin in a Storm, Night Train and Tent in the Rain
• Save your own mixes and mark favorite sounds
• Nightwool remembers your last mix: one tap and it plays

Made for the night
• Sleep timer from 15 minutes to 2 hours, a custom length, or until a set time
• A slow fade-out at the end instead of a sudden stop
• "Then quieter": the timer can turn the sound down and keep playing instead of stopping
• Sleep mode turns the screen completely black
• Calm artwork that follows the night and dims while the timer runs
• Gentle wake-up: birdsong that fades in over ten minutes while Nightwool is playing, with a notification as backup (Premium)
• Max volume setting caps how loud any mix can play

Respects you
• No account and no ads
• Sounds play offline, no Wi-Fi needed (buying or restoring Premium needs a connection)
• Keeps playing in the background, with controls in the notification and on the lock screen
• Can play alongside a podcast or audiobook

Not just for sleep
Some people also play steady sound such as white or brown noise while reading, working or studying. Nightwool is not a medical device and doesn't diagnose or treat any condition. If you have concerns about your sleep or hearing, talk to a doctor.

Free and Premium
8 sleep sounds are free: white, pink and brown noise, rain, ocean waves, crickets, fan and heartbeat. The free version also includes the sleep timer with "Then quieter", sleep mode, 3 ready-made mixes and your own mixes of up to 3 sounds. Premium unlocks all 33 sounds, every ready-made mix, bigger mixes and the gentle wake-up, and you can listen to Premium sounds before you decide. Choose yearly (with a free trial where offered), monthly, or Lifetime, a one-time purchase with no subscription that unlocks Premium on your Google Account. Subscriptions renew automatically until cancelled; to stop the next renewal, cancel before the renewal date in Google Play › Payments & subscriptions › Subscriptions. If a free trial is offered, the yearly subscription becomes paid when the trial ends unless you cancel before then. Prices are shown in the app before you buy.

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