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Kumofuton
Gentle sleep sounds, built for settling a newborn
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.
Top comment
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.
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.
On the analytics side, Kumofuton competes within iOS, Health & Fitness and Parenting — topics that collectively have 198.8k followers on Product Hunt. The dashboard above tracks how Kumofuton performed against the three products that launched closest to it on the same day.
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.
For a complete overview of Kumofuton including community comment highlights and product details, visit the product overview.

