Sunset Glasses – Red Blue Light Blocking Glasses for Sleep (550 nm)
Sunset Glasses
Blue light blocking glasses for the last hours before bed. The red KUGO Standard 550 lens blocks blue and green light up to 550 nm, fitted in your choice of 19 wood and bio-acetate frames.
Made for the hours before sleep.
Screens and bright indoor lighting keep sending daytime signals long after sunset. The KUGO Standard 550 lens blocks blue and green light up to 550 nm, the part of the spectrum that keeps the brain alert, so your evening looks warm, dim and red-toned.
Put them on 2–3 hours before bed while you read, scroll, watch TV or wind down. They are made for slowing down, not for colour-critical work.
Strong filter, honest materials.
Strongest KUGO evening filter
The 550 lens blocks blue and green light up to 550 nm, the deepest evening setting in the KUGO range.
Anti-reflective on both sides
Double-sided anti-reflective treatment reduces reflections, including light coming from behind you.
Wood and bio-acetate
Natural wood and bio-acetate frames, packed in a cork case and a soft fabric case without harmful plastics.
Finished in Slovakia
Every pair of glasses and lenses is assembled and finished in the KUGO workshop in Slovakia, EU.
KUGO Standard 550 at a glance.
A ready-made red sunset lens, fitted in the frame you choose.
Measured data: Standard 550 spectrogram (PDF) · Red lens technical specifications (PDF)
19 frames, one evening lens.
Pick your frame in the options above: Lenox, Bowery, Dyer, Fulton, Leroy, Columbus, Mercer, Dey, Nassau, Aston, Astor, Cherry, Stanton, Chatham, Ludlow, Bleecker, Broome, Madison or Monroe. Every frame also has its own page with measurements and colour options.
Need your prescription?
The Standard 550 lens is ready-made and non-prescription. For prescription lenses, or a softer evening tint (Premium 530 or 500), open the frame's own page and choose a Premium lens, made to order.
Questions before you buy.
When should I wear them?
For the last 2–3 hours before bed, while reading, using screens or winding down.
I wear prescription glasses. What are my options?
Choose a Premium lens with your prescription on the frame's own page, or put the KUGO Universal Red Clip-On (550 nm) on the glasses you already have.
Will colours look different?
Yes. The lens is deep red, so screens look darker and colours shift strongly. That is what makes it work in the evening.
What is in the box?
Your glasses, a cork case, a soft fabric case and a cleaning cloth.
How fast is delivery?
Orders usually ship within 3 business days. Standard delivery takes 7–10 business days, depending on the country.
Can I return them?
Yes, within 30 days of delivery if unused and in the original packaging. Prescription and custom lenses can only be returned for production defects.
Is there a guarantee?
Yes: a 2-year guarantee, plus lifetime service after that.
Are they a medical device?
No. KUGO glasses are CE certified but are not medical devices and do not replace medical advice.
Find the frame that fits you.
Compare KUGO silhouettes or explore the full range of sunset lenses.
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