Questions answered
Sleep glasses FAQ
Straight answers to the questions people ask about sleep glasses: what they do, when to wear them and what to look for before you buy.
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All questions
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Do sleep glasses work?
Sleep glasses work by changing the light around you in the evening. Their deep-amber lenses filter the blue-green light that can suppress melatonin and push...
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Do you wear sleep glasses in bed?
No. Sleep glasses are worn in the evening, not while you sleep. You put them on 1–2 hours before bed, keep watching, reading or scrolling,...
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Does blue light keep you awake?
It can. Blue-rich evening light can suppress melatonin and push the body clock, and sleep, later. The body clock is especially sensitive to short-wavelength light...
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Are blue light glasses worth it?
For sleep, yes, if you choose the right kind. Clear blue light glasses are made for daytime screens and filter only a fraction of blue...
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Do orange glasses block blue light?
Yes, but how much depends on the lens. Pale orange and yellow tints are sold for daytime screens and let more blue light through. Deep-amber...
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Are red light glasses the same as red light therapy?
No. Red light therapy devices give off red light. Red-lens sleep glasses give off nothing: they filter the blue and green light around you in...
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Do blue light glasses help with eye strain or headaches?
The best evidence says they may not help with eye strain. A 2023 Cochrane review found that blue-light filtering lenses may not reduce eye strain...
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Can you wear blue light glasses all day?
Clear blue light glasses are made for daytime screens, so many people wear them all day. Deep-amber sleep glasses are different: they are made for...
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Can you wear blue light glasses with contacts?
Yes. SleepSpec is non-prescription, so you can wear it with contact lenses, just like a pair of sunglasses. Put them on 1–2 hours before bed...
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Why does Erling Haaland wear blue-light glasses before bed?
For sleep. In a 2023 interview on Logan Paul’s Impaulsive podcast, Erling Haaland named blue-blocking glasses among the simple things he does to sleep well,...
SleepSpec Sleep Glasses
Tell your body
the sun has set.
£29.99normally £34.99
- Blocks 98% of blue-green light across 400–520 nm
- 23 g frame with built-in nose pads and spring hinges
- Hard case, cleaning cloth and guide in the box
- Wear 1–2 hours before bed. No app, no charger.
Free UK delivery, 2–3 days · 30-day returns · One-year warranty