A full library of sleep sounds — every noise color, plus nature, ambient, and womb sounds — designed to mask distractions and help you fall asleep faster.
Why sound helps you sleep
Steady, predictable sound reduces your brain's tendency to alert on sudden noises. By giving your auditory system something even to attend to, sleep sounds let the rest of your nervous system settle into deeper, less-fragmented rest. That's why noise machines have been a fixture in newborn nurseries for decades — and why they work just as well for grown-ups.
The Night Light X sound library
Noise colors
White Noise
Even energy across all frequencies. The classic noise machine sound.
Pink Noise
Warmer than white — emphasis on lower frequencies, softer overall.
Brown Noise
Deeper still — like steady rainfall or distant thunder. Many people's favorite for sleep.
Nature
Rain
Soft rainfall, rain on a window, distant thunder.
Ocean
Slow rolling waves and gentle surf.
Thunderstorm
Distant rolling thunder with steady rain.
Fireplace
Crackling logs and soft ember sounds.
Comfort & Ambient
Womb Sounds
The muffled rhythmic sound babies recognize from before birth.
Fan
Steady oscillating or box-fan whir — a perennial sleep favorite.
Ambient Music
Slow, harmonically simple tracks that fade into the background.
Best sound for common situations
Try this: Layer a noise color (like brown) under a nature sound (like rain) for a richer, more enveloping soundscape than either alone.
Pair sound with glow, story, or timer
Sleep sounds get even better in combination. Set a soft glow color, add a bedtime story or meditation, and start the sleep timer so everything fades together once you're under.
Try the sound library tonight.
Free on the App Store. Optional in-app purchases.