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Optical Science
Light is the most powerful drug you're not controlling.
Every evening, screens flood your eyes with wavelengths that tell your brain it's midday. Overlight filters them out — so your biology can do what it was built to do.
99.6%
Nocive Light Blocked · Eclipse
72%
Nocive Light Blocked · Dusk
20min
To melatonin onset
Light Filtration — Real Lab Data
See what your lenses actually block.
Luminous Transmission
100%
All light passes through unfiltered
Nocive Light Blocked (475–650nm)
0%
No melatonin protection
Certification
—
No standard applied
The Visible Spectrum
Your lenses don't block light.
They block the right light.
The visible spectrum runs from 380nm to 700nm. Only two zones — blue (415–495nm) and green (495–550nm) — directly suppress melatonin via ipRGC photoreceptors. Our Eclipse lenses block 99.6% of this range. Dusk blocks 72.73%.
Blocked by Overlight
Passes through
Nocive Light Blockage — Lab Certified
Eclipse · Red Lens
Dusk · Amber Lens
The Protocol
What happens inside your brain when you wear Overlight.
The pineal gland responds to light signals relayed from the retina. Block the right wavelengths, and melatonin secretion begins within minutes — not hours.
T — 0 min
Glasses on
Blue & green light is immediately filtered. Your ipRGC photoreceptors stop sending suppression signals to the suprachiasmatic nucleus.
T — 20 min
Melatonin onset
The pineal gland begins secreting melatonin. Core body temperature starts to drop. Drowsiness signals emerge naturally.
T — 60–90 min
Sleep pressure peaks
Melatonin levels reach their natural nightly peak. Your body is biologically primed for deep, restorative sleep.
Next morning
Recovered & sharp
Deeper slow-wave and REM cycles translate to better cognitive performance, mood, and physical recovery.
Melatonin Level — With vs Without Overlight
With Overlight
Without
Choose Your Lens
Two lenses. One goal.
Deeper sleep.
Maximum blocking · Lab certified
Eclipse
Red lenses · Tv 19.33% · ANSI Z80.3:2018 ✓
✓
Blocks 99.6% nocive light (Tmin 475–650nm: 0.41%)✓
Luminous transmission: 19.33% — maximum protection✓
Tmax UVA (315–380nm): 0.07% — full UV blockBalanced filtering · Lab certified
Dusk
Amber lenses · Tv 62.58% · ANSI Z80.3:2018 ✓
✓
Blocks 72.73% nocive light (Tmin 475–650nm: 27.27%)✓
Luminous transmission: 62.58% — natural visibility✓
Tmax UVA (315–380nm): 0.07% — full UV blockReal Results
What high-performers are saying.
★★★★★
"
I've tried melatonin supplements, sleep tracking apps, blackout curtains. Nothing changed my sleep as fast as these glasses. Within 3 days I was falling asleep 40 minutes earlier.
★★★★★
"
As a content creator I'm on screens until midnight every day. Since Dusk, I actually feel tired when I should. My Oura ring went from 72 to 88 sleep score in two weeks.
★★★★★
"
The science is legit. I read the studies on ipRGC suppression and these lenses are specced correctly. Most blue-light glasses don't even touch green — Overlight does at 99.6%.
Peer-Reviewed Research
The studies behind the science.
Overlight's lens specification is grounded in published photobiology research.
[1]
Gooley et al. (2011) — Journal of Clinical Endocrinology & Metabolism. Exposure to room light before bedtime suppresses melatonin onset and shortens melatonin duration in humans.
[2]
Lockley et al. (2003) — Journal of Clinical Endocrinology & Metabolism. High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light.
[3]
van der Lely et al. (2015) — Chronobiology International. Blue blocker glasses as a countermeasure for alerting effects of evening light-emitting diode screen exposure in male teenagers.
[4]
Phelps (2008) — Medical Hypotheses. Dark therapy for bipolar disorder using amber lenses for blue light blockade. First study to establish amber lens efficacy for circadian regulation.