We're a small team building nive, a sleep-sounds app, and we launch here on Oct 27. Before then I'd love real answers, not what you think you should do:
nive is a calm place made of sound. Layer up to 6 of 60+ seamless sounds (rain, forest, ocean, fire, brown noise) into your own mix and place each one left, right or all around you. Sleep Mode fades it gently to silence over 30 min to 8 h instead of cutting off, so the stop doesn't wake you. Chromecast any sound or mix to a speaker or TV, or just ask Alexa. Plus guided wind-down breathing, offline downloads, and no data collected.