Blocks blue and green light up to 550 nm for a natural evening routine

Give your body the rest it deserves. The Bionaut 'Yesterday' Sleep 550™ glasses have been specially developed to support your body optimally in the evening. The high-quality Sleep 550™ lenses block 100% of blue and green light up to 550 nm, reducing your exposure to light that can affect your biological clock.

Because of artificial light, LED lighting, smartphones, tablets, televisions and laptops, your brain still receives the signal in the evening that it is daytime. This can disrupt the natural production of melatonin. By filtering this light, you create an environment that is better aligned with your body's natural preparation for the night

Why choose the Bionaut 'Yesterday' Sleep 550™ glasses?

• ✔ Blocks blue and green light up to 550 nm
• ✔ Supports natural melatonin production*
• ✔ Supports a healthy day-night rhythm
• ✔ Ideal for screen use in the evening
• ✔ Premium optical quality without image distortion
• ✔ Lightweight and comfortable acetate frame
• ✔ Scratch-resistant, thermally hardened coating
• ✔ High-quality multi-layer anti-reflective coating against distracting reflections
• ✔ Suitable for daily use in the evening

Why blue light affects your sleep

Your body has an internal biological clock, also known as the circadian rhythm. This clock responds strongly to light.

During the day, blue light helps you stay alert and energetic. In the evening, however, it has the opposite effect. When you are exposed to blue and green light from screens or LED lighting, your body may think it is still daytime. This inhibits the natural production of melatonin and it can take longer before you feel sleepy.

By limiting blue and green light in the evening, you help your body prepare for the night in a natural way.

Sleep 550™ filter technology

Not every pair of blue light glasses works the same way.

Many standard blue light glasses filter only a small part of the blue light. The Sleep 550™ lens has been developed for evening use and completely blocks blue and green light up to 550 nm.

As a result, these glasses offer much more extensive filtering of the part of the light spectrum involved in regulating the sleep-wake rhythm.

This lens has been developed on the basis of scientific insights into the influence of light on the circadian rhythm.

Sleep 550™ or Work 480™ – which should you choose?

Not every moment of the day calls for the same protection.

The Sleep 550™ lens has been developed for use in the evening. It completely blocks blue and green light up to 550 nm, supporting your body's natural preparation for the night.

The Work 480™ lens, on the other hand, is intended for daytime use. It filters blue light up to 480 nm and is ideal for long periods of computer work, gaming or other screen use during the day and in the evening. It reduces glare and visual fatigue, without the intensity of the Sleep 550™.

In short: wear the Sleep 550™ in the evening to prepare for the night, and the Work 480™ during the day while working at a screen.

Premium optical quality

Premium glasses deserve premium lenses.

That is why the Bionaut 'Yesterday' Sleep 550™ glasses are fitted with optically ground plastic lenses. These provide a clear, true-to-life image without distortion, so you can comfortably watch television, read or work at a screen.

The lenses feature:

• ✓ Premium multi-layer anti-reflective coating
• ✓ Thermally hardened scratch-resistant coating
• ✓ High optical clarity
• ✓ No image distortion
• ✓ Optimal viewing experience, even during prolonged use

High-quality acetate frame

The frame is made from premium acetate.

This high-quality material is known for its:

• ✓ Lightweight wearing comfort
• ✓ Hypoallergenic properties
• ✓ Ergonomic fit
• ✓ High durability
• ✓ Luxurious look

This means you can wear the glasses effortlessly for several hours at a time.

When should you wear the 'Yesterday' Sleep 550™ glasses?

For the best results, we recommend wearing the glasses:

• From sunset onwards; or
• At least 1 to 3 hours before you go to sleep.

Use the glasses while:

• ✓ Watching television
• ✓ Working on a laptop or computer
• ✓ Using your smartphone
• ✓ Using a tablet
• ✓ Gaming
• ✓ Reading under LED lighting

Also suitable for

The 'Yesterday' Sleep 550™ glasses can offer extra support if you:

• Spend a lot of time working at a screen
• Are sensitive to artificial lighting
• Work irregular hours or shifts
• Regularly suffer from jet lag
• Want to optimise your evening routine

Important

These glasses have been developed for evening use and are not suitable for driving or participating in traffic, or for situations in which correct colour perception is necessary.

* Blue and green light can affect natural melatonin production. By reducing exposure to this light in the evening, you support the body's natural preparation for the night.

365 Brillen (BIONAUT™ brand) combines over 25 years of experience in optics with insights from sleep research and biohacking. All glasses are manufactured in-house from high-quality materials such as acetate and titanium. The Sleep 550™ lens filters 100% of blue and green light up to 550 nanometers, specifically developed for evening use to support melatonin production.