Do eye masks improve sleep?

Yes, eye masks can improve your ability to stay asleep. Andrew Huberman explains that eye masks are effective because they cover the upper half of your face, which includes areas of glabrous skin—like the skin on your palms and soles. This can help by blocking out light, which is crucial for maintaining sleep. However, it's important that the eye mask is not too tight and that the room is kept cool enough. If the room is too warm, wearing an eye mask might lead to overheating, which can disturb sleep 1.