Nightfall
A slow, endless soundscape for deep sleep
Plays until you stop it
Soundscapes
Nature sounds
Music
Music helps you drift off but can stir the mind later, so it fades out over 5 minutes before the pulses begin.
Your own sound
No file added
MP3, M4A, WAV or similar from your device. It loops all night and mixes with everything above. It stays saved in this browser for next time.
Deep sleep
Pulses work once you are asleep, so they wait, then fade in over 5 minutes.
Wake-up alarm
Sleep sounds fade away while the wake sound slowly rises, so you surface from light sleep instead of a jolt.
Turn the alarm on, then press Begin at bedtime. Keep this page open and your device plugged in. Browsers can pause pages, so keep your phone's own alarm as a backup.
Sleep timer
Sound fades in over 10 seconds and fades out over 3 minutes when a timer ends. Keep this page open; on phones, plug in and keep the screen on so the browser keeps playing.