Sleep mask

Covering the eyes before sleep cuts leftover lamp light and lock-screen glow. When the whole room cannot go dark, a sleep mask turns only your field of view into night. It travels well for trips, naps, and early bedtimes, and anchors the basic sleep cue of a darker place.

Why a sleep mask

A quiet, cool, dark bedroom supports sleep. NHLBI also advises keeping the bedroom dark. Thin curtains, hallway light, or device glow can leave the room imperfectly dark. A sleep mask is the smallest way to make only your eyes see night first.

Brand and fabric matter less than the cue of covering the eyes. Cloth, a travel mask, or spare fabric at home can do the same job.

How to attach it to a routine

Right before the blanket, after Do Not Disturb, put the mask on. Repeat the same order and the mask becomes a bedtime ritual. For naps, use the same mask on the sofa so “I’m sleeping now” works in daylight too.

If it pinches, loosen until the nose and temples feel easy. Taking it off can also mark wake-up.

Effects you can expect

Less light at the eyes before sleep, fewer wake-ups from lock screens or lamps, and the same sleep cue in hotels or guest rooms. Less about a perfect blackout, more about making night arrive in front of your eyes first.