How to Choose a Sleep Mask: 6 Things That Actually Matter

Sleep masks look simple, but the difference between a good one and a bad one is huge. A bad mask leaks light, slides off in the middle of the night or presses on your eyes. A great one disappears the moment you put it on. Here's what to check before you buy.

1. Does it actually block the light?

This is the whole point, and it's where most masks fail. Flat masks can't follow the shape of your face, so light sneaks in around the nose and at the sides. Look for:

• A contoured, 3D shape rather than a flat piece of fabric.
• A seal at the nose, the number-one place light leaks in.
• A dense, light-blocking inner layer, not just a single layer of fabric.

Quick test: put it on in a bright room and look down. If you can see light at the bottom edge, it will let light in at night too.

2. Is there space for your eyes?

A mask that sits directly on your eyelids can feel heavy and uncomfortable. Contoured cups or shaped foam keep the fabric slightly away from your eyes, so you can blink freely and wake up without pressure marks.

3. Will it stay on all night?

Thin elastic straps slip, dig in or lose their stretch after a few washes. A wide, adjustable band spreads the pressure evenly and stays in place, even for side sleepers. Adjustable closures also let you get the fit exactly right.

One detail people forget: noise. Standard Velcro makes a loud ripping sound and can snag your hair. A quiet closure makes a real difference, especially if you share a bed.

4. How does it feel against your skin?

You'll wear it for hours, so fabric matters. Some people love a smooth, cool feel on warm nights; others prefer something soft and cozy. A double-sided mask gives you both, so you can flip it depending on the season or your mood.

5. Is it easy to keep clean?

A mask sits on your face every night, so it needs regular washing. Check that it can go in the washing machine (in a laundry bag, on a cold cycle) and that it keeps its shape afterwards.

6. Does it do anything extra?

A wider band that wraps over the ears can soften background noise like snoring or traffic, which means one less thing standing between you and deep sleep.

How The Lune Mask 3.0 checks every box

• Blocks up to 99.8% of light with a 3D light-blocking structure
• Nose seal so light can't leak in from below
• Contoured foam that keeps the fabric off your eyes
• Wide band that wraps over your ears to soften noise
• Silent Velcro that won't pull your hair
• Two sides: cool, smooth fabric or ultra-soft bamboo viscose
• Machine washable, with a storage bag included

Every feature on this list came from the same question: what stops people from sleeping in real darkness? Then we fixed it. Try The Lune Mask 3.0, with free US shipping and 30 days to decide.