Sound Science SleepQuiz

Listen

The sound library

Long, loopable recordings organized by category. Videos are embedded from YouTube — placeholders here will be swapped for original recordings.

Rain

6 hr loop

Heavy rain on a tin roof

Dense, steady rainfall with occasional distant thunder. No music, no loops you'll notice.

Rain

6 hr loop

Gentle rain in a tent

Softer, closer rainfall on a tent. Good for reading or light background focus.

Rain

6 hr loop

Distant rolling thunderstorm

Rain with slow, low thunder well off in the distance. No sudden or close cracks.

Pink Noise

10 hr loop

Classic pink noise

A softer, fuller alternative to white noise — energy tapers at higher frequencies, closer to how rain or wind actually sounds.

White Noise

8 hr loop

Classic white noise

Full-spectrum static, evenly distributed. Best for masking sudden household or street sounds.

Brown Noise

10 hr loop

Deep brown noise

Low, rounded rumble with the high end rolled off. A heavier, warmer alternative to white noise.

Ocean

3 hr loop

Ocean shoreline waves

Slow, rhythmic waves recorded close to shore. A natural pace of roughly one wave every 8–12 seconds.

River

10 hr loop

Mountain river

A faster, higher-pitched trickle than ocean waves — steady and textured without any rhythmic pattern to anticipate.

Forest

4 hr loop

Night forest with crickets

Layered insect sound and a soft breeze, no wildlife calls sharp enough to startle.

Wind

10 hr loop

Wind moving through pines

A steady, breathy wash of moving air with occasional soft gusts — no whistling or door-rattling intensity.

Snow

6 hr loop

Hushed snowfall in a quiet field

Mostly silence — the muffled, padded quiet that falling snow creates, with the faintest whisper of wind.

Fireplace

6 hr loop

Crackling fireplace, close and warm

A steady wood fire with irregular pops and crackles — just the audio layer, no visuals needed, but maybe a cute kitty.

Fan

10 hr loop

Box fan on a steady setting

The familiar mechanical drone many people grew up falling asleep to — steadier and more monotone than white noise.

Cafe

4 hr loop

Coffee shop ambience

Distant chatter, espresso machine hiss, and light background hum blended together — built for focus, not sleep.

Chill Jazz

6 hr loop

Lofi chill jazz

Soft piano, brushed drums and snares, and a walking bassline at a slow, steady tempo — instrumental, no vocals to pull focus.

Transit

12 hr loop

Night train cabin hum

A low, steady rumble with the occasional distant clack of rails — the sound a lot of people specifically associate with restful travel naps.

Binaural

5 hr loop

10 Hz alpha binaural tones

A gentle carrier tone with a 10 Hz beat frequency. Headphones required for the effect to work.

Singing Bowls

2 hr loop

Singing bowl tones

Sustained overtones from struck and rubbed bowls, with slow natural beating as close harmonics interact.

Heartbeat

12 hr loop

Slow, steady heartbeat rhythm

A simple, even pulse at a resting pace — most studied for soothing infants, though some adults find the predictability calming too.

Space

3 hr loop

Deep space ambient drone

A slow-evolving synthetic texture with no percussive elements — closer to a sustained chord than a soundscape.