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Do sleep masks actually help you sleep better?
Short answer. A sleep mask is mainly a light-control tool. It makes the most sense when the room cannot be darkened enough, but it should not be marketed as a universal insomnia treatment.
What do trials show?
A randomized hospital trial found better reported sleep quality in patients given eye masks and earplugs. Trial.
Other ICU and postoperative studies have also reported better perceived sleep with eye masks and earplugs. ICU trial · Postoperative trial.
Those settings are unusually bright and noisy, so they do not prove that a mask improves sleep in someone whose bedroom is already dark.
When a sleep mask makes the most sense
- travel and hotels;
- shared bedrooms;
- night-shift workers sleeping during the day;
- streetlights or incomplete shutters;
- rooms where blackout curtains are not practical.
Comfort matters more than marketing
A mask that traps heat, presses on the eyes, slips or creates excessive strap tension can become more disruptive than the light it blocks.
The Sleeple criteria
- actual blackout performance;
- eye-area pressure;
- strap adjustability;
- side-sleep compatibility;
- heat and breathability;
- washing;
- dimensions;
- returns and warranty.