SleepMix

Make a sound mix for bedtime, reading, or quiet time with SleepMix. This free edition for desktop, Amazon, and browser extensions offers 60 sound entries built from 18 shared recordings. Pick from rain, fans, water, nature, room sounds, and more. Play one sound or combine several, then adjust the volume to suit your space.

Start with any of 20 ready-made mixes, or build your own and save it as a preset for later. A sleep timer can stop playback after the time you choose, with an optional fade-out. The app also includes a 4-7-8 breathing guide that you can start or stop when you want. Local listening totals show your completed sessions and minutes listened.

SleepMix has no ads or purchases in this edition. Your mixes, presets, and listening totals stay on your device. Start at a quiet volume and adjust by ear; the volume slider cannot tell you how loud the sound is at your ears.

Want SleepMix on your phone? Visit https://whitenoisegeneratoronline.com/ for links to the iPhone and Android apps.