OyasumiCho

Sleep gently with music, wake up refreshed. A sleep support app that belongs on your nightstand.

WHO IT'S FOR

• Those who want calming music to fall asleep
• Parents who need lullabies or womb sounds for their baby
• Anyone who wants café-style BGM for work or reading
• Those who prefer waking up to gentle sounds
• Anyone who wants to check the time at night without a bright screen

SLEEP MUSIC (38 tracks, 6 categories)

Café Jazz — Classy and calming Yoga & Relaxation — Breathe deeply in bed Synth & Chillout — Slow and quiet Ambient & Nature — Rain, fire and waves Deep Sleep — Drift off into space Baby & Lullaby — Gentle lullabies

Each category includes a Mix (all tracks) and individual tracks. All music is created with commercially licensed audio.

WORK BGM

Use the Work BGM tab to loop your favorite sleep music as background music for daytime work or reading.

ALARM SOUNDS (11 types)

Classic alarm clock, digital alarm, bells & chimes, phone ringtones, rooster, bird calls, and forest cicadas. Preview any sound before selecting.

SLEEP MODE

Tap "Good Night" to dim the screen and start your music.

• Music auto-stops after your chosen duration (30/45/60/90/120 min)
• Gentle 30-second fade-out at the end
• Screen stays on at minimal brightness — check the time anytime
• Tap to briefly restore brightness
• 3 darkness levels: Dark, Very Dark, Pitch Black
• Snooze countdown shows remaining time

ALARM

At your set time, your chosen alarm sound fades in over 15 seconds.

• Full-screen Stop and Snooze buttons
• Snooze intervals: 3 / 5 / 9 / 15 / 30 minutes
• Optional volume escalation with each snooze

VOLUME

Set sleep and alarm volumes independently (20-100%). Both use fade-in/out so sounds are never jarring.

LANGUAGE

Switch between Japanese and English anytime from the settings.

PRIVACY

No personal data is collected. All settings are stored locally on your device. Ads appear only in the Work BGM tab (Google AdMob, non-personalized). No ads during sleep mode or alarm. No in-app purchases.