Fall Asleep Faster
Deeper, Sounder Sleep
98% Blue-Light Blocked
23g Ultra-Light Comfort
Keep the screens. Lose the sleepless nights.
Slip on SleepSpec 1–2 hours before bed. The deep amber lenses block 98% of the blue-green light (400–520nm) that suppresses melatonin — so you fall asleep faster, sleep more soundly, and wake up actually refreshed.
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Evening blue light keeps your brain in “day mode” and suppresses melatonin. SleepSpec’s deep amber lenses block 98% of the disruptive 400–520 nm wavelengths, letting your natural sleep hormones rise so you wind down on time.
Blocking blue- & green-light before bed has been shown in independent studies to support earlier melatonin release, quicker sleep onset, and better next-day performance.¹-⁶
| Outcome | Key Result | Study (Year) |
|---|---|---|
| Melatonin boost | +58% nighttime melatonin | Univ. of Houston (2017)¹ |
| Longer sleep | +24 min sleep duration | Univ. of Houston (2017)¹ |
| Faster sleep onset | Lights-out → sleep time shortened | Montana State (2021)² |
| Fewer awakenings | Significant drop in night-time wake-ups | Montana State (2021)² |
| Added sleep time | +23 min objective sleep, better insomnia scores | Columbia University (2018)³ |
| Earlier melatonin | 28 min earlier onset | Univ. of Bergen (2021)⁴ |
| Review consensus | “Substantial evidence” for quicker sleep | Univ. of Oklahoma (2021)⁵ |
| Better next-day focus | Higher work performance & engagement | Indiana University (2020)⁶ |
Trials above used lenses blocking 40–80% of blue light. SleepSpec blocks a lab-verified 98% of the same 400–520 nm range, delivering a strong nocturnal darkness signal — without the heavy colour distortion of 100% blocking.
SleepSpec was not part of the trials listed. The studies show the demonstrated effect of reducing disruptive evening light; SleepSpec is engineered to exceed the filtration levels used in those studies.
¹ Ostrin L. et al., University of Houston, 2017 ² Bigalke J. C., Montana State University, 2021 ³ Shechter A., Columbia University, 2018 ⁴ Liset R., University of Bergen, 2021 ⁵ Hester J., University of Oklahoma, 2021 ⁶ Guarana C., Indiana University, 2020
Drift off faster, sleep more soundly, and wake fully refreshed.*
Sleek, unisex silhouette. Preserves natural colour, fits most faces, slips weightlessly under headphones — built for streaming, reading or late-night coding without the eye strain.
Wear 1–2 hours before bed during screen time; take them off at lights-out and let melatonin do the rest.
The circadian science behind the amber lens — in five short steps.
Beyond vision, your eyes carry light-sensing cells that report straight to your body clock. Bright, cool-toned light reads as daytime; dim, warm light reads as evening. Everything you look at after dark is a time signal — whether you mean it to be or not.
Those clock cells are most sensitive to blue-green wavelengths — roughly 400–520nm — exactly what screens and LED lighting emit most. After dark, this light can suppress melatonin, the hormone that starts sleep, and keep your brain running on daytime settings.
SleepSpec’s deep amber lenses filter 98% of light across that full range, then ease off through warmer wavelengths so colours stay natural. Your brain gets a nighttime signal — while you keep watching, reading, or scrolling.
Melatonin builds in the hours before sleep, which is why SleepSpec is designed for the last 1–2 hours of your evening. Put them on when you start winding down, and your natural sleep signal can begin on schedule.
In a University of Houston trial, evening amber-lens use was linked with around 58% higher nighttime melatonin and roughly 24 minutes more sleep. Those studies tested amber lenses generally, not SleepSpec — but our lenses are built around the same published wavelength range.
Many blue-light glasses are designed for daytime. SleepSpec is engineered for the hours before bed.
Many blue-light glasses are made for daytime screens, filtering only part of the spectrum. SleepSpec’s deep amber lenses filter 98% across the full 400–520nm blue-green range — the light most associated with nighttime melatonin suppression. Day glasses protect your eyes. SleepSpec protects your wind-down.
23g of flexible TR90. Spring-flex hinges and a low-pressure fit. Wide lens coverage reduces side-light leakage from lamps and LEDs. Designed to disappear on your face, night after night.
Every batch is spectrometer-tested to confirm 98% blue-green filtering. Premium sleep glasses cost £70–150. SleepSpec is £29.99 — because you should pay for the lenses, not the logo.
Wearing amber lenses before bed raised night-time melatonin by ~58%.
Ostrin et al., University of Houston, 2017
In adults with insomnia symptoms, amber lenses before bed produced ~30 minutes more sleep.
Shechter et al., J. Psychiatric Research, 2018
Blue-light-filtering glasses before bed were linked to fewer night-time awakenings.
Bigalke et al., Sleep Health, 2021
Workers who wore them before bed slept better and were sharper the next day — night owls most of all.
Guarana et al., J. Applied Psychology, 2021
Informed by published research. Researchers at the University of Houston found that evening amber-lens use raised night-time melatonin by ~58% and increased sleep duration by ~24 minutes (Ostrin et al., 2017).
Further reading: Schöllhorn et al. (2023), Communications Biology; Shechter et al. (2018), J. Psychiatric Research; Glickman et al. (2025), Transl Vis Sci Technol. SleepSpec was not part of these trials; they establish the effect of blocking these wavelengths — which SleepSpec is built to do.
