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 the evening, before bed. If you want help winding down for sleep, you want a filtering lens, red or deep amber.
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How can I tell them apart?
A therapy device has LEDs and a battery or cable. A sleep lens is a plain pair of glasses, sold by what it blocks: a percentage and a wavelength range.
Red or deep amber for sleep?
Red lenses filter further into the green, so colours change more. SleepSpec’s deep-amber lens preserves more natural colour than dark-red lenses, keeps screens and text usable, and blocks 98% of blue-green light across 400–520 nm. Red light glasses for sleep: red or amber? compares the two.
When do you wear them?
For the 1–2 hours before bed. Take them off at lights-out, and never wear them while driving.
More questions
- Do sleep glasses work?
- Do you wear sleep glasses in bed?
- Does blue light keep you awake?
- Are blue light glasses worth it?
- Do orange glasses block blue light?
- Do blue light glasses help with eye strain or headaches?
- Can you wear blue light glasses all day?
- Can you wear blue light glasses with contacts?
- Why does Erling Haaland wear blue-light glasses before bed?
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