• Deeper Sleep

  • Easier Mornings

  • Sharper Days

Screens Are Stealing Your Sleep

  • The Problem

    Your evening screens emit the wavelengths your brain reads as daylight — delaying the melatonin that puts you to sleep.

  • The Science

    That signal lives between 400 and 520 nanometres. Filter those wavelengths before bed and the wake-up cue quiets.

  • The Solution

    SleepSpec lenses block 98% of light across that range. Wear them an hour before bed: your screen stays bright, your brain stays dark.

THE SCIENCE

Backed by the research — engineered beyond it.

Eight independent university studies have shown that filtering blue and blue-green light before bed supports earlier melatonin release, faster sleep, and deeper rest. The lenses tested in those trials blocked 40–80% of that light.

SleepSpec blocks a lab-verified 98%.

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SleepSpec wasn't tested in these trials — it was engineered from them. Every lens specification shown to work is built into our product, then taken further.

Read the Full Research

THE PRODUCT

Built for the Hour Before Bed

★★★★½ 4.5 from 34 Amazon reviews · 200+ customers

98% blocked at 400–520nm — the wavelengths that signal daytime to your brain

23g TR90 frame, spring-flex hinges — light enough to forget you're wearing them

Worn 1–2 hours before bed — engineered for the evening wind-down

1-year warranty · 30-day returns · Free UK shipping

£29.99

Includes £5 launch discount — applied at checkout.

Add to Cart — £29.99

Customers are saying

4.76 ★ (17)
Verified

The Research, by Use Case

  • If your evenings are screens

    Adults wearing amber lenses for 2–3 hours before bed showed up to 58% higher nighttime melatonin in clinical trials.

    Ostrin et al., University of Houston, 2017

  • If you struggle to fall asleep

    A randomised trial of adults with insomnia symptoms found amber lenses produced ~30 minutes more sleep.

    Shechter et al., Journal of Psychiatric Research, 2018

  • If you wake up during the night

    A field study of blue-light-filtering glasses worn before bed found a significant reduction in night-time awakenings.

    Bigalke et al., Montana State University, 2021

  • If you work shifts or late hours

    Employees wearing blue-light-filtering glasses before bed gained around 23 minutes of nightly sleep in a workplace field study.

    Guarana, Barnes & Ong, Journal of Applied Psychology, 2021

How to Wear SleepSpec

  • 1. Put them on

    1–2 hours before bed. The earlier in your wind-down, the cleaner the signal to your brain.

  • 2. Use your screens

    Watch TV, scroll, work, read. The lenses do the filtering while you do what you'd do anyway.

  • 3. Take them off

    Drop them in the case on your bedside table. Lights off, no wake-up signal, ready for sleep.

Most reviewers say they notice a difference within the first week of consistent use.

See the science →

MADE FOR YOUR EVENING

Wherever Your Evening Takes You

Working late, watching TV, scrolling, reading. SleepSpec works inside your evening — not against your wind-down.

Frequently Asked Questions

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How long before bed should I wear them?

1–2 hours before bed. Put them on as your wind-down begins, and keep them on while you're on screens or under bright indoor lighting. The lenses filter the wavelengths that suppress melatonin — so they only work when you're wearing them in the window before sleep.

What makes SleepSpec different from regular blue-light glasses?

Most blue-light glasses are designed for daytime eye comfort and block around 20–45% of blue light. SleepSpec is designed for the hour before bed and blocks 98% of light in the 400–520nm range — the specific wavelengths that suppress melatonin.

Can I wear them over prescription glasses?

Not over the top of your prescription glasses — the current frame sits directly on the face. If you wear glasses for distance, contact lenses for evening wear are the cleanest workaround. A prescription-lens version is on the roadmap.

Do they work for all screen types?

SleepSpec filters the wavelengths in the 400–520nm range that come from any source — phones, tablets, laptops, TVs, LED bulbs, fluorescent lights. The glasses don't care which device the light comes from; they filter the wavelengths.

Read all FAQs →

Made by Someone Who Couldn't Switch Off

2:17 a.m. The phone is bright, sleep is gone, another hour written off. That pattern is what pushed our founder, Angus Kekwick, to build SleepSpec — glasses engineered for the critical hour before bed, not for the working day.

  • Wide-coverage lenses help block side-light
  • 98% of blue-green light filtered at 400–520nm
  • 30% lighter than mainstream amber-tint frames

Today, SleepSpec exists for the people who couldn't switch their evenings off either. The goal: reclaim one million nights of better sleep by 2030.

Read the story →