A 963Hz tone with rain for kids winding down at bedtime. A soft, steady tone blends with gentle rainfall for one hour, enough to cover the time it takes most children to settle and fall asleep. Use it as a calm cue at the end of your bedtime routine: lights down, story finished, then press play and let it fade into the background. Keep the volume low and the speaker away from the bed. (A relaxation aid, not a medical treatment.)