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Mouth taping may be a trending sleep hack, but the science behind it is slim

A few small studies have tested the method in people with sleep apnea

A photo of a black man sleeping on his side facing the camera.

Mouth taping is a nighttime trend that some people say improves sleep. But scientists have not yet done large clinical trials to test the practice.

SomniFix

By Meghan Rosen

Maybe TikTok showed you people putting a little tape on their lips. Or maybe Instagram served you ads for sticky mouth strips. On social media and beyond, a trend called mouth taping is keeping people’s mouths shut at night — helping them breathe through their nose.