Sleep Mode: Deep Sleep Sounds

Your phone is now a sound machine. A good one. Sleep Mode plays sound all night and does nothing else. One hundred sounds, a mixer that layers them, a timer that fades instead of stopping, and a wake-up that brightens instead of buzzing. The screen goes dark. The rain does not. ONE HUNDRED SOUNDS, MASTERED FOR ALL-NIGHT LOOPING Rain, wind, ocean, streams, crickets. Box fans, hair dryers, the hum of a refrigerator. Trains, highway drives, airplane cabins. Noise in white, pink, brown, green and grey. Womb and heartbeat. Music boxes playing public-domain lullabies, slowly. Three NASA mission recordings, for sleeping somewhere else entirely. Every sound is loudness-matched and cut to loop without a seam. No gap, no click, no restart you can hear at 3am. All one hundred ship inside the app — nothing streams, nothing downloads later. THE MIXER Layer rain over a fan. Put the heartbeat…