I kept waking up at 3 a.m. until I discovered this free hidden iPhone feature — now I sleep through the night - Tom's Guide

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This includes balanced noise (white noise), bright noise (pink noise), dark noise (brown noise), and nature sounds such as ocean waves, crackling fire, rainfall, streams, and even a plane. "The best sound for sleep is usually one that feels steady and non-intrusive while gently masking environmental noise," explains board-certified neurologist Dr. Dan Berlau says high-quality evidence shows silence is best for sleep, the professor also explains that continuous background noises, like white or pink noise, can help many people by masking environmental interruptions.

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