Trtl Glimpse Sleep Mask Review

Sleep masks might seem simple—until you’re trapped in an economy seat for nine hours trying to sleep under the fluorescent glow of an airplane cabin. That’s when a well-designed mask can make or break your rest. The Trtl Glimpse Sleep Mask promises premium comfort with full blackout coverage and a design that keeps pressure off your eyes. It’s a bold claim, especially when so many masks slip, press, or let light sneak in just when you’re finally drifting off.

We tested the Trtl Glimpse Sleep Mask for three weeks, including multiple long-haul flights to and from Tanzania, to see if it’s really the frequent traveler’s dream. Between its soft materials, adjustable eye cups, and surprisingly useful carry pouch, it makes a strong case for a spot in your in-flight kit. But with competitors like Manta Sleep and Eagle Creek offering similar designs, how much of this is true innovation—and how much is clever branding? Let’s take a closer look.

The Rundown

The Trtl Glimpse Sleep Mask feels like a small engineering project for your face—in a good way. It combines bamboo, polyester, Rayon, elastane, polyamide, and polyethylene foam into a soft, jersey-like fabric that’s gentle on skin and naturally moisture-wicking. If you’ve ever woken up on a flight sweating under your mask, you’ll appreciate this. We ran it through multiple overnights in different temperatures, and it never felt sticky or stuffy. The bamboo component helps with breathability, and the foam structure gives it a slight plushness without being bulky.

What really sets the Trtl Glimpse apart are the adjustable eye cups. Instead of a flat panel pressing against your eyelids, each cup sits over your eyes like a tiny dome, giving your lashes room to move freely. The cups attach with hook-and-loop fasteners and can be repositioned side to side, letting you customize the alignment to your unique face shape. Once dialed in, it’s almost eerily comfortable—you can fully open your eyes under the mask without any contact. This small detail makes a huge difference on long flights or nights when you just can’t fall asleep right away.

The brand also markets a “peek-through” mesh flap on each eye cup. In theory, this lets you lift the flap slightly to see what’s happening around you without removing the mask—handy if you want to check if the cabin lights are back on. In practice, though, it’s more of a novelty. You can make out vague shapes and brightness changes, but not much detail. Still, it’s a clever idea, and it doesn’t detract from the blackout performance when closed.

Speaking of blackout: this mask excels at it. Once properly adjusted, no light leaks through the sides or nose bridge, which many masks struggle with. Even the curve around the nose feels thoughtfully designed—not too tight or too loose. Whether you’re a side sleeper or nap upright, it maintains a seal without shifting.

The hook-and-loop fastener strap deserves its own praise. It’s made from a soft material that doesn’t snag hair or feel scratchy. Once secured, it stays in place all night. It never slipped down the back of the head during testing—something we can’t say for many other masks we’ve tried.

Packability

At first glance, you might assume the Trtl Glimpse Sleep Mask would take up too much space with its thick foam and wide strap. But it actually packs better than expected, thanks to its included travel pouch. The pouch closes with a hook-and-loop fastener flap and has a built-in clip so you can attach it to the outside of your carry-on or personal item for easy access. It’s compact enough to slip into a backpack pocket or airplane seat organizer.

Inside the pouch is a small mesh pocket to hold the included foam earplugs. They’re nothing fancy—standard yellow hardware-store style—but they get the job done. What’s more useful is how the pouch doubles as a mini travel organizer. Once the mask is out, it becomes convenient for storing small in-flight essentials like a charging cable, earbuds, or a portable battery pack. During testing, we found it handy to keep it in the seatback pocket to avoid rummaging around under the seat mid-flight.

You can fold the mask gently and slide it in vertically, then flatten the pouch to compress it further. The foam cups spring back to shape once you unpack the mask, and after several weeks of stuffing it into bags, we didn’t see any noticeable deformation. That’s a good sign for durability, especially if you toss gear around between flights and hotel rooms.

While it’s not the slimmest sleep mask around, the Trtl Glimpse earns a high score for packability because it is easy to store and access. The thoughtful extras—pouch, earplugs, clip—round out a complete travel sleep system rather than just a single-use mask.

Fit Notes

A good fit can make or break a sleep mask, and the Trtl Glimpse nails most of the important points. The wide back strap provides even pressure distribution, helping it stay put through tossing, turning, or sitting upright. The soft hook-and-loop fastener makes it adjustable for both smaller and larger heads, and unlike traditional versions, it doesn’t snag hair or irritate skin.

When on, the mask feels snug but breathable. The material around the eyes is smooth and doesn’t rub or pull. Because the cups are adjustable, there’s a bit of trial and error involved at first—aligning them perfectly takes a few tries. But they stay put once you’ve set them to your eye spacing. During our test flights, we didn’t have to readjust even after sleeping for hours.

Light blocking is excellent. Even when the cabin lights came on or daylight peeked through the airplane windows, it stayed completely dark. This design will be a game-changer for anyone sensitive to even minor light leaks. The nose bridge seals well without pressing too hard, another common pain point the Trtl avoids.

We also appreciate that the mask doesn’t collapse onto your eyelids. Some flat sleep masks can make blinking uncomfortable or leave imprints after long use. Here, the eye cups lift the fabric just enough to let your eyes move freely—perfect for anyone who hates that suffocating feeling of fabric against their lashes.

Quick Comparison

The Trtl Glimpse Sleep Mask isn’t the first to experiment with eye cups and blackout design. The Manta PRO Sleep Mask uses a similar concept with adjustable cups and plush materials. In fact, Manta’s original model predates Trtl’s. However, in practice, the Trtl performs better in one key area: staying in place. Manta’s elastic band is smaller and tends to slip during sleep, while the Trtl’s wider strap maintains a steady hold.

That said, the Manta line has some appealing variations—like silk, weighted, or cooling versions—if you want specific materials or features. The Manta Original is also about $15 cheaper than the Trtl, making it a solid value pick if you don’t mind minor slipping.

Then there’s the Eagle Creek Sandman Sleep Mask, which takes a simpler approach with memory-foam padding. It’s softer and lighter, but it lets light leak in near the nose and sides. It’s fine for casual travelers or short naps, but not ideal for light-sensitive sleepers. It also tends to shift out of place easily, a problem the Trtl mostly lacks.

Lastly, there are budget brands on Amazon—like the MZOO Sleep Mask—that mimic the contoured design but cut corners on materials. They often feel stiffer or bulkier, and their straps don’t stay secure. You can save money, sure, but you’ll likely sacrifice durability and true blackout performance.