Guide
Sleep sounds, plainly
Rain, white, pink, brown, green. What they do, how loud to play them, and a night that does not lock rain behind a paywall.
Why rain
Rain sounds for sleep
Why rain on glass is the most-played sleep sound, what the research actually says, and how loud to keep it.
The hiss
White noise for sleep
White noise masks well and hisses. When to use it, when to switch to pink, brown, or rain.
Between white and brown
Pink noise for sleep
Pink noise is 1/f. Rain, wind, and ocean sit here. Lab bursts timed to slow waves are not the same as an 8-hour YouTube video.
The rumble
Brown noise for sleep
Brown (red) noise is deeper than pink — waterfall, distant thunder, a box fan in the hall. Evidence is thinner. Preference is not.
A newer name
Green noise for sleep
Green noise is a mid-band slice of pink — heavy rain, a river, speech-shaped. It is a marketing name with a real filter.
How loud
How loud should sleep sounds be?
Masking works at modest levels. All-night 50–60 dB is not free. Headphones, babies, and dawn fade.
The YouTube night
8 hour rain sounds for sleep
Why eight-hour rain videos win, how to play the same mix without ads in the room, and when a fade is kinder than all night.
No rumble
Heavy rain sounds with no thunder
The most common rain-video complaint is thunder at 3am. Heavy rain in Sounds is a wash. Thunder is off.
The machine people own
Box fan sounds for sleep
A box fan is the cheapest sleep machine. What it is acoustically, and a generated fan that does not click.
The product
A free sleep sounds app with no ads
Sounds is free rain, white, pink, brown, and green noise. No account. No ads in the mix. How that stays true.
The hold
Keep sleep sounds playing overnight on iPhone
Safari tabs sleep. Add Sounds to the Home Screen, leave Overnight on, and the mix can sit on the lock screen.
Sounds ByJTT · By JTT · hello@byjtt.com