Binaural beats play slightly different frequencies in each ear, and your brain perceives a third “beat” equal to the difference. Sleep tracks often target delta or theta ranges to encourage relaxation.
Do They Work?
Evidence is limited. Some small studies report increased relaxation or subjective sleepiness. Much of the benefit may come from lying still, breathing slowly, and expecting calm — the same ingredients as any bedtime ritual.
How to Try Them Safely
- Use comfortable headphones or a stereo speaker setup.
- Keep volume low — if it feels alerting, stop.
- Use the same track nightly to build a cue for bed.
- Do not listen while driving or operating machinery.
Better-Proven Alternatives
For chronic insomnia, cognitive behavioral therapy for insomnia (CBT-I) outperforms sound hacks. For noise masking, pink noise has more practical support.
Pair any relaxation tool with a fixed wake time and cycle-aligned bedtime from our free sleep calculator.