Listening Well

Three Hours or Eight?

Still Earth Journal · September 2026

The most important moment in an all-night ambience video is the one where it stops. So we moved it to the morning.

For the first few months, every Still Earth scene was about three hours long. It felt like plenty: long enough to fall asleep to, short enough to render and check carefully. Then we looked at how people were actually watching. Most sessions started between ten and midnight, on a television, and the viewer did not come back to press play again. The film ended somewhere around 2 a.m., in the dark, with nobody awake to notice. Except, of course, the part of the brain that never stops listening.

What happens when the scene ends

Two things, and both are bad for sleep. First, the sound floor drops. Whatever the rain was masking, the fridge, the road, a neighbour's door, is suddenly audible again at full contrast. That kind of change is exactly what the sleeping brain treats as worth waking up for; there's more on why in Why Ambient Sound Helps You Sleep.

Second, on most devices, something else starts. Autoplay picks the next video and it is rarely a quieter one. We've heard from people who fell asleep to rain and woke to a car review. That's not a small thing at 2 a.m.

A three-hour scene ends in the middle of the night. An eight-hour scene ends after you're up.

Why eight and not four

Eight hours is the length of a night for most adults, with a margin. It means the scene is still running when the alarm goes, and the last thing it does is fade rather than cut. It also means fewer decisions: you don't have to set a sleep timer, work out when it will stop, or queue a second video. Press play once.

There is a cost. Eight-hour files are large and slow to make, and every seam in the sound has to be checked across the whole length, not just the first hour. But that's our problem, not yours, and the new Storm Rooms are all built this way.

When three hours is the right call

Setting it up so the length works for you

If you play scenes through a speaker or sound machine rather than a TV, How to Play Ambience All Night covers volume, devices and partner-friendly setups. For the newest eight-hour scene, start with Desert Glass House at Dusk.