"Finally something that works. I'm falling asleep within 20 minutes instead of lying awake for an hour. The amber lenses look better than I expected."
James T. · Software Engineer
Verified Buyer
KRONVEIL · X0-1
Kronveil X0-1 · Unisex
4.7321 Reviews$99.00 USD
$49.50/pair
In stock — ships in 48 hrs Free worldwide Secure checkout
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Lab-Tested
30-DAY MONEY-BACK GUARANTEE
- —99% Blue + Green Light Filtered
- —CR-39 Optical Polymer Lens
- —Mazzucchelli Acetate Frame
- —17g · Unisex · One Size
The Shift
What changes when you wear the X0-1.
Fall asleep faster every night
Blue & green light suppresses melatonin. Block it 2 hours before bed and your body actually winds down on time.
Zero eye strain by 9pm
High-energy light removed instantly. No more squinting, dry eyes, or that wired-and-tired feeling after dark.
Wake up sharper every morning
Protected melatonin means deeper sleep stages. Deeper sleep means a clearer head when the alarm goes off.
Why Most Blue Light Glasses Fail You
They block the wrong light.
Most blue light glasses only filter a small portion of blue light and ignore green light entirely, but both blue and green light (400–520nm) disrupt sleep and throw off your circadian rhythm. That's why cheap blue light glasses leave you wired at bedtime, groggy in the morning, and still dealing with eye strain. The KRONVEIL X0-1 blocks the full 400–520nm spectrum — the exact range that suppresses melatonin and keeps your brain switched on when it should be winding down.
The Comparison
Not all blue light glasses are equal.
| Feature | KRONVEIL X0-1 | Typical Blue Light Glasses |
|---|---|---|
| Blue light filtered | 99% (400–520nm) | ~15% (400–450nm only) |
| Green light filtered | Yes — full spectrum | No |
| Lens material | CR-39 optical polymer | Polycarbonate / acrylic |
| Frame material | Italian Mazzucchelli acetate | Injection-molded plastic |
| Weight | 17g | 25–35g |
| Lab-tested spectral report | Included | Rarely |
| Sleep guarantee | 30-day full refund | Typically none |
Circadian Reset
Your body clock drifts when artificial light hits your eyes after sunset. The X0-1 stops the drift and keeps your rhythm locked to nature.
Stress Hormone Drop
Blue light keeps cortisol elevated past dark. Block it and your nervous system finally gets permission to stand down.
Evening Ritual
Putting them on becomes the boundary between work and rest. No willpower required — your biology does the rest.
Deeper Recovery
Protected melatonin means deeper sleep stages. Your body fixes what it's supposed to fix overnight.
Spectral Report
The only glasses that block the full sleep-disrupting spectrum.
Filtered Light Spectrum · 400–520nm
KRONVEIL X0-199% blocked
Typical blue-light glasses~15% blocked
400nm450nm520nm700nm
Kronveil Optics Lab · Independently lab-tested
Frame & Sizing
Built to disappear on your face.
| Total width | 140mm |
| Lens width | 50mm |
| Bridge | 20mm |
| Temple arm | 145mm |
| Lens height | 42mm |
| Weight | 17g |
One size, designed to suit most adult faces. Try them risk-free for 30 days.
Shipping & Returns
| Processing | Packed and dispatched within 48 hours. |
| Delivery | Worldwide air shipping, typically 8–10 days. |
| Returns | 30-day window, unworn, original packaging. Full refund within 10 business days. |
The Process
Your Journey
Night 1: First Real Wind-Down
- Your eyes stop fighting the screen within 30 minutes
- That 'wired but tired' feeling starts to fade
- You notice the amber world feels calmer
Night 3: Sleep Onset Speeds Up
- Falling asleep takes noticeably less time
- Less tossing and turning before you drift off
- Melatonin production finally starts on schedule
Night 7: Morning Clarity
- You wake up feeling actually rested, not groggy
- That 2pm crash becomes less severe
- Eye strain from the day before is reduced
Week 2: Deep Recovery Kicks In
- Your body is spending more time in deep sleep stages
- Mental fog during the day starts clearing
- You start craving the evening ritual of putting them on
Week 4+: New Baseline
- Good sleep becomes your default, not a lucky night
- Your circadian rhythm stays locked even on busy weeks
- The benefits compound — better recovery, sharper focus
FAQ
Questions, answered.
Reviews
4.7
Based on 321 reviews
5
78%
4
14%
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5%
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2%
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Customer Photos
"I didn't realise how wired I actually was at night. It took me around 2 hours to fall asleep before. Now: under 30 minutes. Took a couple nights to get used to the amber tint — but absolutely worth it."
Mei · Creative Director
Verified Buyer"The science is real. Wore them for a week on a long-haul and my sleep quality on the plane was genuinely different."
Ravi K. · Consultant
Verified Buyer"Three weeks in and my Oura readiness scores are up an average of 12 points. I put them on around 9pm and I'm out cold by 10:30. The headaches I used to get are basically gone."
SL
Sarah L. · Product Manager
Verified Buyer"I was skeptical — I've tried two other amber-lens brands and returned both. These are noticeably warmer and the frames don't pinch after 4+ hours. Sleep onset down from ~45 min to ~15 min."
DR
Daniel R. · ER Physician
Verified Buyer"Used them every night for two months. The wind-down effect is real — my body just knows it's time. Only minor gripe: I wish the case was a touch slimmer for travel."
PN
Priya N. · Strategy Consultant
Verified Buyer"I work night shifts and resetting my circadian rhythm on off-days has always been brutal. Wearing these for the last hour of my shift has shaved an hour off my time-to-sleep."
MB
Marcus B. · Nurse
Verified Buyer"Bought these for the migraines. Six weeks of consistent evening use and I've gone from 3–4 episodes a month to one mild one. Falling asleep faster is a bonus."
EK
Elena K. · Architect
Verified Buyer"Frames arrived with a small scratch on the left lens and the amber tint is more orange than I expected from the photos. Customer service was responsive about a replacement but the first impression wasn't great. Hoping the second pair is better."
TH
Thomas H. · Accountant
Verified BuyerKronveil X0-1
$99
★ 4.7· 321 reviews
