How HEVO works
Why Your Sleep Feels Broken (and How to Fix It Naturally)
Your brain and body has a built-in clock – blue light screens destroy it every evening.
Morning: Light says “wake up” → your body stops producing melatonin
Evening: Darkness says “time to relax” → melatonin starts flowing
Night: Deep sleep with maximum melatonin production
But here’s what actually happens:
Instagram → your brain thinks it’s daytime
Netflix → melatonin is completely blocked
Scrolling → your body stays in “day mode”
“Why can’t I fall asleep?!”
“Why do I feel like I got hit by a truck?!”
It’s not all light – only certain wavelengths between 380–550 nanometers. This is the exact blue/green light that tricks your brain into thinking it’s midday.
Your brain gets confused:
Every time you see these wavelengths after sunset, your brain thinks:
"Wait, the sun’s still up! Stop producing melatonin!”
Step 1: Block the confusion
How HEVO Fixes It
HEVO Sleep Lens blocks 99% of the wavelengths that confuse your brain. Suddenly, your environment looks like natural sunset light.
Step 2: Restore natural melatonin production
How HEVO Fixes It
Within 20 minutes, your body starts producing melatonin again – just like it’s supposed to after sunset.
Step 3: Reset your body clock
How HEVO Fixes It
You start feeling sleepy at the right time (around 9:30–10:30 PM) instead of being wired past midnight.
Why Most Blue Light Glasses Don’t Work
They block the wrong thing:
Regular “blue light glasses” only block 20–30% of the problem wavelengths.
HEVO goes all-in:
We block 99% of the exact wavelengths Harvard scientists identified as most harmful to melatonin. That’s why you feel the difference instantly.
How HEVO works
Harvard studies show that evening blue light crushes your sleep hormone - melatonin, keeps you wired at night, and leaves you groggy in the morning.
HEVO blocks up to 99% of the blue light from the harmful wavelengths 380-550nm.
See all blue light glasses
2 hours
of HEVO in the evening equals...
8 hours
of better sleep
Us vs Others
Best sellers
What do our customers says?
Marcus P
They are cheat code
Thought €79 was pretty expensive until my Garmin watch went from 71 to 89 sleep score in 2 days. These glasses are a cheat code for anyone who lives on screens. Worth every krona.
Joakim
Helps a lot
Sosa
Perfect before bed
Perfect to use 1-2 hours before bedtime and just relax after evening exercise!
Sebastian Å
Can really recommend
Really good glasses that filter out harmful blue light effectively. I use them in the afternoon and evening to rest my eyes. I find that I sleep better and wake up more rested. Can really recommend.
Emma
Got compliments
Finally - blue light glasses that don't make me look like a lab tech! Got compliments at dinner while wearing them. You can literally feel your brain wind down when you put them on. Game changer."
Carl B
Great glasses
Great glasses, the headaches I used to get from my daily work in front of the computer have disappeared after I bought these glasses :)
Sahand
Stylish and comfortable
Really nice and comfortable glasses that relieve me during the day and afternoon when I work in front of a screen.
Noel S
Game changer
Wearing these blue light blockers the last 2 weeks have truly been a game changer! I can really feel that i sleep better and so much comfort in the eyes at night
Lukas K
Awesome, simply
Good quality, nicely packaged, good service and comfortable glasses - Awesome, simply.
Trusted by professionals
HEVO is worn and approved by elite athletes to help optimise their recovery, sleep and keep a natural circadian rhythm.
Vesta Transparent Sleep Lens – 99% blue light blocking
Earplugs – Soft silicone material with 4 different sizes
Sleep Mask – 3D-molded design with breathable material
Nose Strips – Open up your nose and improve airflow
Sleep Tape – Prevent mouth breathing, sleep better, and stop snoring
