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A sleep-sound app with one promise: never get in the way of sleep. 27 sounds, all free, no ads or sign-up: real rain, waves and fire, white noise, and the household sounds parents rely on, like a kitchen fan and the womb.
Hi Product Hunt! I'm Ryo, a solo developer in Japan.
When my son was a newborn, he cried through the nights. A little white-noise speaker got us through, and that's where Kumofuton came from. I wanted a sleep-sound app that does one thing well: play a steady, seamless sound until morning and never wake anyone.
- 27 sounds, all free: real CC0 field recordings (rain, waves, fire), white/pink/brown noise, and household sounds for babies (kitchen fan, washing machine, hair dryer, the womb)
- Long, seamless loops, so nothing starts over in the night
- Layer up to two more sounds
- A wake-up alarm that rings even in Silent mode on iOS 26 (AlarmKit)
- A calm cloud-and-stars look that stays dim at night
- No ads, no account, no tracking
Kumofuton Plus is an optional one-time purchase for longer timers and more alarms. No subscription.
I'd love to hear which sounds help you or your little one sleep.
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About Kumofuton on Product Hunt
“Gentle sleep sounds, built for settling a newborn”
Kumofuton was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #154 on the daily leaderboard. A sleep-sound app with one promise: never get in the way of sleep. 27 sounds, all free, no ads or sign-up: real rain, waves and fire, white noise, and the household sounds parents rely on, like a kitchen fan and the womb.
Kumofuton was featured in iOS (111k followers), Health & Fitness (83.4k followers) and Parenting (4.4k followers) on Product Hunt. Together, these topics include over 75.3k products, making this a competitive space to launch in.
Who hunted Kumofuton?
Kumofuton was hunted by RYO. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Kumofuton stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
RYO