This page opens on the Relax mix: beach waves, a real recording, with green noise underneath. Silence is the alternative, available simply by not pressing play.
Which sound suits a sitting?
The Relax mix pairs beach waves, a real recording of surf at Punta Allen, Quintana Roo, Mexico, at 85%, with green noise at 25% underneath. The waves rise and fall slowly, with no sudden sounds in them, and green noise adds an even floor rather than any movement of its own. Green noise on its own, and every other recording, including night wetland's frogs and crickets after dark, are one tap away if you would rather try something else.
How long should it play?
With Pro, the Relax mix is set to thirty minutes, and the timer also offers 15, 60 and 90 minutes, or all night, which is eight hours. Without Pro, it plays for fifteen minutes a day. The sound fades out over about half a minute at the end, so the end of the sound can mark the end of a sitting if you would like it to. The length can be changed before you press play, or partway through, with the new length counting from that moment.
Speaker or headphones?
Either works; the mixer plays the same way through both. A speaker leaves the room's own sound in the mix alongside it, which is worth trying against headphones to see which sits better with a particular sitting.