TechGearLab

The Manta Sleep Mask features velcro detachable eyecups, offering customization and comfort for just about anyone. The low-profile strap is also easily adjustable, ranging from 18.5 to 24.5 inches, and is lined with soft cotton and polyester. The velcro is snag-free, so it doesn't get tangled in your hair. The entire mask is cozy, straightforward in its design, and sewn together with quality stitching. The elastic portion of the strap is thicker than average, which should increase the longevity of its stretchiness. Our favorite aspect of this mask is its ability to achieve nearly a full blackout. We loved the deep eyecups and hardly noticed our eyelashes touching the mask — of course, this will depend on the length of your eyelashes. Lastly, the mask stays put and doesn't change in feel as much as some of the others we tested when rolling side to side.  
During our LED flashlight test, the Manta ranked as the best, although we were able to pick up on subtle differences in pure darkness vs. red-tinged darkness influenced by the flashlight. That is to say, a small amount of light can find its way in, but in more realistic, everyday environments such as midday sunlight or even tungsten light in a bedroom, creating near blackout is achievable. The customization might take trial and error for some, especially if you have a smaller face. This mask is a bit bulkier than a traditional sleep mask design and may not be as appealing for minimalist travel. Nonetheless, it can still be easily packed into the mesh bag it comes with &#40;which also holds the mask for machine washing&#41;. In summary, we feel this is a super comfortable, versatile, and effective mask we think will please most people looking to darken their sleep environment. 

The Manta 100% Blackout Eye Mask features velcro detachable eyecups, offering customization and comfort for just about anyone. The low-profile strap is also easily adjustable, ranging from 18.5 to 24.5 inches, and is lined with soft cotton and polyester. The velcro is snag-free, so it doesn't get tangled in your hair. The entire mask is cozy, straightforward in its design, and sewn together with quality stitching. The elastic portion of the strap is thicker than average, which should increase the longevity of its stretchiness. Our favorite aspect of this mask is its ability to achieve nearly a total blackout. We loved the deep eyecups and hardly noticed our eyelashes touching the mask — of course, this will depend on the length of your eyelashes. Lastly, the mask stays put and doesn't change in feel as much as some of the others we tested when rolling side to side.  
During our LED flashlight test, the Manta ranked as the best, although we could pick up on subtle differences in pure darkness vs. red-tinged darkness influenced by the flashlight. That is to say, a small amount of light can find its way in, but in more realistic, everyday environments such as midday sunlight or even tungsten light in a bedroom, creating a near blackout is achievable. The customization might take trial and error for some, especially if you have a smaller face. This mask is a bit bulkier than a traditional sleep mask design and may not be as appealing for minimalist travel. Nonetheless, it can still be easily packed into the mesh bag it comes with &#40;which also holds the mask for machine washing&#41;. In summary, we think this is a super comfortable, versatile, and effective mask that will please most people looking to darken their sleep environment. 

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expert-review

The Best Sleep Mask

Wirecutter

A silken exterior material, a flat design, and an adjustable strap make this mask a fit for almost any face, but it puts pressure on the eyes.

The Alaska Bear Natural Silk mask is reliably simple. With a silk body, adjustable elastic strap, and plastic adjuster, there isn't much else going on — but that is certainly in line with the sleep mask tradition: simple, effective, and silky soft. It's somewhat easy to move the mask around on your face to find a sweet spot for blocking out light, which is ideal for naps and general relaxation. We measured the unstretched circumference to range from approximately 18 to 26.5 inches, which is the most substantial out of all the masks we recently tested. At the time of this review, the mask also comes in 22 different colors and patterns, but only in one size. Being lightweight and compact, this model can slip into pretty much anything, be it a stuffed carry-on or your back pocket.
Since the mask is flat and has one strap, it places light pressure over the eyes. Some people may like this for brief relaxation, but it's not for everyone. Our lead tester's eyelashes felt irritated from being pressed, even if the pressure can be mitigated by loosening the strap. The strap itself isn't the most comfortable for the tops of our ears, but this might change depending on your head shape. For people with smaller faces and narrow noses, we have also noticed light leaking near the nose, which requires fiddling with the mask to find the best balance of comfort and effectiveness. Still, overall, the lightweight and soft feel makes this a great travel item, short nap aid, or work break relaxation tool, all for a low price.

The Alaska Bear Natural Silk Eye Mask mask is reliably simple. With a silk body, adjustable elastic strap, and plastic adjuster, there isn't much else going on — but that is certainly in line with the sleep mask tradition: simple, effective, and silky soft. It's somewhat easy to move the mask around on your face to find a sweet spot for blocking out light, which is ideal for naps and general relaxation. We measured the unstretched circumference to range from approximately 18 to 26.5 inches, which is the most substantial out of all the masks we recently tested. At the time of this review, the mask also comes in 22 different colors and patterns, but only in one size. Being lightweight and compact, this model can slip into pretty much anything, be it a stuffed carry-on or your back pocket.
Since the mask is flat and has one strap, it places light pressure over the eyes. Some people may like this for brief relaxation, but it's not for everyone. Our lead tester's eyelashes felt irritated from being pressed, even if the pressure can be mitigated by loosening the strap. The strap itself isn't the most comfortable for the tops of our ears, but this might change depending on your head shape. For people with smaller faces and narrow noses, we have also noticed light leaking near the nose, which requires fiddling with the mask to find the best balance of comfort and effectiveness. Still, overall, the lightweight and soft feel make this a great travel item, short nap aid, or work break relaxation tool, all for a low price.

Alaska Bear Sleep Mask Review | Sleepopolis

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Lightweight and contoured, this mask fits comfortably and blocks light well for a wide variety of face shapes (though it’s best for those who are sitting upright or sleeping on their back). Its deep eyecups allow your eyes to flutter during sleep.

The lightweight and contoured Nidra mask is a light-blocking win for most face shapes, with deep eye cups that allow the wearer to blink freely and arrive feeling refreshed.

The lightweight and contoured Nidra eye mask is a light-blocking win for most face shapes, with deep eye cups that allow the wearer to blink freely.

Lightweight and contoured, this mask fits comfortably and blocks light well for a wide variety of face shapes (though it’s best for those who sleep on their back). And the Nidra’s deep eyecups allow your eyes to flutter during sleep.

The Nidra Deep Rest is a basic model at a low price, but it still offers contoured eye covers for the best comfort of all the models that we tested. Notably one of the lightest masks of the bunch, it's made with 100% polyester interlock fabric and a thin foam insert. There is a small snag-free velcro patch on the elastic strap, which seems to imply that it isn't meant to be adjusted. We measured the unstretched circumference to be around 20.5 inches. When it fits properly, it does its job well. 
Testers with smaller faces had more of a struggle with this mask staying in place. Light tends to leak in by the nose and eventually everywhere if you move around a lot. The velcro can be adjusted slightly by misaligning it, but this adds or subtracts only an inch or so. If you attach the velcro to any of the other parts of the strap, then it begins to pull apart the fabric. Overall, the ultralight fabric is quite comfortable, and we love the deep contours for maximum eyelash room. Ideal for ultralight travel and for those wishing to spend the least for more-than-fair quality, we feel the Nidra offers the top comfort for its price point.

Why We Love the Nidra Deep Rest Eye Mask

bazaarvoice

The Nidra Luxury Patented Sleep Mask is a basic model at a low price, but it still offers contoured eye covers for the best comfort of all the models that we tested. Notably one of the lightest masks of the bunch, it's made with 100% polyester interlock fabric and a thin foam insert. There is a small snag-free velcro patch on the elastic strap, which seems to imply that it isn't meant to be adjusted. We measured the unstretched circumference to be around 20.5 inches. When it fits properly, it does its job well. 
Testers with smaller faces had more of a struggle with this mask staying in place. Light tends to leak in by the nose and eventually everywhere if you move around a lot. The velcro can be adjusted slightly by misaligning it, but this adds or subtracts only an inch or so. If you attach the velcro to any of the other parts of the strap, then it begins to pull apart the fabric. Overall, the ultralight fabric is quite comfortable, and we love the deep contours for maximum eyelash room. Ideal for ultralight travel and for those wishing to spend the least for more-than-fair quality, we feel the Nidra offers the top comfort for its price point.

Sleep Mask Comparison