Forget White Noise, Sleep Frequencies Might Be the Thing That Actually Transforms Your Rest, a Sleep Doctor Explains

A bedroom with large arched windows, a double bed with blue bedding, and a large circular mirror on the wall.

These days, it feels like every week brings a new promise of perfect sleep. From mouth taping and white noise to chronologically retracing your day's activities, some bedtime hacks veer into the downright bizarre. But while a few trends deserve raised eyebrows, sleep frequencies might actually have more substance than most.

But wait, what exactly are sleep frequencies? As the name suggests, they're specific sound frequencies said to improve sleep. Unlike white noise or brown noise — which combine audible frequencies to create a steady, static-like hum — sleep frequencies focus on specific tones thought to promote better sleep by inducing deep relaxation at a neurological level.