Wear yellow lenses during the day (for example, while using a screen or under artificial light) to reduce fatigue and overstimulation. Red lenses are intended for the evening, when it is dark outside or approximately two hours before bedtime. They block all disruptive light frequencies that can disturb your biological clock and help you drift off to dreamland.

Up to 99.9% of blue light and part of the green spectrum (380–550 nm). That’s exactly what you need to avoid disrupting your melatonin production through exposure to light. And you’ll notice the difference—in calmness, relaxation, and sleep quality.

Our advice is to always request a test report from suppliers. Many glasses do not block the right wavelengths, making them ineffective. Test report available!

Yes, the image takes on a red tint. But you can still see what’s happening perfectly well. Many customers actually use the glasses while watching their evening series or a film. This way, you can still enjoy your favorite moments without compromising your sleep. You not only relax mentally, but also help your body wind down at the same time.

The lenses don’t have a fragile, cheap coating like most blue-light glasses, but CR39 absorption lenses. They can easily be cleaned with the included glasses cloth. Store and transport the glasses in the glasses case or the included box for extra protection.

All day long, we’re bombarded with screens, light, and stimuli. We often try to add something on top of that (a pill, supplement, or gimmick). Removing blue light may help support a greater sense of calm.

Yes, most customers quickly find a suitable size. Check our size chart for the right fit. 90% of adults fit size M. Size S runs small, and size L runs quite large.

And good to know: women say that the glasses also sit well in their hair—no strange bump or kink.

Many of our products are based on scientifically researched principles related to sleep, light, breathing, and recovery. Think of the effect of blue light on melatonin, or the benefits of nasal breathing for deep sleep.In practice, our customers often notice a difference after just the first night—physically and mentally. Some products require a short adjustment period, but the effects are quickly noticeable when you use them consistently.Want to track your progress accurately? Then we recommend using a sleep tracker or another measurement device. This way, you can also see the impact in numbers, alongside what your body and mind are already feeling.

Absolutely. They are designed for everyday use, both at work and during relaxation. Thanks to their stylish design, they combine health with fashion—perfect for when you’re on the go, driving, or on vacation.