Post Seven Cavana Sleep Glasses
94–99% Blue Light Blocking (400–450nm) · Evening Work & Screen Time · Lab‑Tested · UV400 (Black / Tortoiseshell)
Blocks ~94–99% blue light
Amber tint · evening lens
UV400 protection
Anti-reflective (AR) coating
CR-39 lens · hard multi-coat
Handmade premium acetate
Frame Size
55-18-142
Lens Width
55 mm
Bridge Width
18 mm
Temple Length
142 mm
Cavana · Cat-eye
A cat-eye frame. It sits best on these face shapes:
OvalDiamondRoundSquare
Luna · Round
Square, rectangular / oblong & oval faces.
Somnia · Wayfarer
Round & oval faces. A versatile shape that suits most face types.
Cavana · Cat-eye
Oval, diamond, round & square faces.
Not sure of your face shape? Measure ear to ear across your temples, then match the widest part of your face to the shapes above. Still stuck — message us and we'll help you pick.
Post Seven Cavana Sleep Glasses
Post Seven Cavana Sleep Glasses
Better Sleep starts here
Better Sleep starts here
Better Sleep starts here
Better Sleep starts here
Better Sleep starts here
Better Sleep starts here
Wear them for 30 nights.
Don't sleep better? Send them back for a full refund. No forms, no questions.
Free shipping nationwide
The details
Everything you need to know
Details
Keeping your lenses clear
Amber lenses are coated. Treat them gently and they stay optically clean for years.
- Rinse first, wipe second. Dust is abrasive — run the lenses under lukewarm water before touching them with a cloth.
- Use the microfiber cloth in the box. Tissues, shirt sleeves and paper towels leave fine scratches.
- A drop of mild dish soap is all you need. Dry with the microfiber, never with heat.
- Never use alcohol, ammonia, glass cleaner or acetone — they strip the coating.
Keeping the frame straight
- Remove them with both hands, one on each temple — one-handed removal is what bends frames out of alignment.
- Don't park them on your head; it splays the temples permanently.
- Store them in the hard case, lenses facing up.
- Keep them out of a parked car. Dashboard heat warps acetate and softens coatings.
Frame gone loose or sitting crooked? Write to support@postsevensleep.com — we'll walk you through re-aligning it.
All measurements in millimetres. Frames are measured flat, lens to lens.
| Model | Shape | Lens width | Bridge | Temple |
|---|---|---|---|---|
| Luna | Round | 47 | 24 | 147 |
| Somnia | Square wayfarer | 53 | 19 | 148 |
| Cavana | Cat eye | 55 | 18 | 142 |
- Lens width — the widest point of one lens.
- Bridge — the gap between the two lenses, over your nose.
- Temple — the arm, from hinge to the tip behind your ear.
These three numbers are printed inside one of the temples on most glasses, usually as 53□19 148. Find them on a pair you already wear comfortably and match them to the row above — within 2–3 mm on lens width and bridge will fit much the same.
- 1×Post Seven amber sleep glassesIn the model and colourway you selected
- 1×Hard-shell protective caseCrush-resistant, magnetic close
- 1×Microfiber pouchDoubles as a lens cloth for daily use
- 1×Lens cleaning cloth
- 1×Authenticity & warranty card
- 1×Sleep protocol cardHow and when to wear them for the best results
Shipped in plastic-free packaging. Free delivery across India, and 30 days to send them back if they're not for you.
Description
| Frame Size (in mm) | 55 – 18 – 142 |
| Lens Width | 55 mm |
| Bridge Width | 18 mm |
| Temple Length | 142 mm |
| Frame Material | Handmade premium acetate frame |
| Frame Shape | Cat Eye |
| Hinges | German Silver hinges with nickel |
| Nose Pad | Fixed |
| Frame Colour Options | Black, DA Tortoiseshell |
| Included Accessories | Protective case, Microfiber cleaning cloth |
Specifications
| Color | Black, Tortoise Shell |
|---|
TESTED · THIRD-PARTY LAB
Passed on three standards
EN ISO 12312-1Europe
ANSI Z80.3United States
AS/NZS 1067.1Australia / NZ
One lens, three certifications. Every value below is read off that same report.
MEASURED · 400–450 NMSEE THE READING
94–99% of blue light blocked
Across 400–450 nm the narrow band that suppresses melatonin at night transmittance measures between 0.10% and 5.58% on a spectrometer. Mean transmittance across the wider 380–500 nm band is 6.41%.
UV400SEE THE READING
99.8% of UV blocked
UVB transmittance 0.04%, UVA 0.06%, and 0.23% maximum across the whole 280–400 nm range. Full UV400 protection.
THE LENS · CR-39 UV++
Amber tint, hard multi-coat
Filter category 1 at 49.69% light transmission — dark enough to work, light enough that red and yellow signal lights still pass recognition testing.
Not certified for road use or driving. Built for evenings indoors.
Report: Lens CR-39 UV++ amber tint HMC. Tested to EN ISO 12312-1:2022, AS/NZS 1067.1:2016+A1:2021 and ANSI Z80.3-2018(R2023). Filter category 1. Per the report, these lenses are not suitable for road use or driving.
From sheet to sleep
Every Post Seven frame is cut, shaped and finished by hand not pressed out of a mould.
Lens architecture
Five layers. One job: block the blue.
The amber tint isn't styling it's the only pigment that absorbs the 400–550nm wavelengths that tell your brain it's still daytime. Everything else in the stack protects that one working layer.
94–99%
Blue light absorbed
400 – 550
Nanometres filtered
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Worn every night, by real people.
VERIFIED CUSTOMERS
Take their words,
Take their words,
Not ours.
Every photo and every line below came from a verified Post Seven customer. We didn't script any of it.
Amber Sleep GlassesJust joined the Post Seven club a while back. The frames are of superior quality and fits with comfort. They are absolutely cool, trendy and a perfect match for night outs too. I usually use them in stadiums and movie theatres but now I can’t wait to explore more benefits with daily and continuous use of Post seven 😍
Urvazi Kotwal
Verified Customer
Amber Sleep GlassesI’ve never really been someone who sleeps early — 3–4 AM has always been my normal. But since I’ve started going to work twice a week, I needed to fix my sleep cycle somehow. That’s when I started using these Post 7 glasses, and honestly, they’ve made a noticeable difference. I just wear them in the evening while I’m on my phone or laptop, and it actually helps me start feeling sleepy much earlier — around 12 instead of 3. It’s been a pretty simple change, but it’s helped me get my routine a lot more in line without forcing it too much. Definitely didn’t expect it to work this well.
Arzaan Wadia
Verified Customer
Amber Sleep GlassesI’ve been using the Post Seven glasses for over two months now and the improvement in my sleep has been incredible. I’ve felt the benefits in my everyday routine, especially in my energy and overall well-being. I can’t believe it took me this long to try them.
Kayzad Kuka
Verified Customer
Amber Sleep GlassesI have been using the Post Seven glasses for a past few months now in the evenings and late at night. When I wasn’t using them, I was getting migraines, which these glasses have completely helped get rid of! I’m also able to fall asleep faster and deeper than when I wasn’t using them.
Rishad Unwalla
Verified Customer
Amber Sleep GlassesI’ve always struggled with sleeping early or waking up early. Call it witchcraft or magic but these glasses work. I’m yawning and in bed usually by 10 pm because I put these on around 7:15 after gym. Genuinely so happy Post Seven could help me with my terrible pattern. I owe these guys one.
Yathaash
Verified Customer
Amber Sleep GlassesGreat glasses, amazing quality. I started wearing them at 7PM and would instantly start feeling sleepy, hence I’ve now set this into my 9PM post-skincare routine that eases me into bed by a good 10:30ish. Love my orange night view! Thank you Post Seven.
Rochelle Soares
Verified Customer
Amber Sleep GlassesPost Seven has been a great addition to my night routines. It helps me wind down and have a great restful sleep. Grateful for Post Seven coming into my life.
Zenia Boga
Verified Customer
Amber Sleep GlassesI started wearing my Post 7 glasses a few months ago, honestly just to support my best friend but I didn’t expect them to actually change how I sleep. I put them on for about a few hours before bed, and the difference was real. I fall asleep faster, I wake up feeling more rested, and my eyes don’t feel nearly as strained at night. I’m so proud of what my friend has built with this brand, and even prouder that it actually works. Post Seven is the real deal.
Shreas Pardiwala
Verified Customer
Amber Sleep GlassesAbsolutely love the glasses! Took a while to get used to, but unbelievable results. Once on — my eyes feel more relaxed, the environment feels cozier, the perfect start to ease one into a good night’s sleep!
Vijay Bhaskar
Verified Customer
Amber Sleep GlassesPost Seven glasses have been a game changer when it comes to my sleep and recovery score. It’s a major part of my switch off and unwinding routine, but I also use them when I have some extra work on long days.
Pratik Bhatia
Founder, Finspo Consulting
Amber Sleep GlassesI’ve been using my Post Seven glasses regularly in the evenings, especially when I’m on my phone or laptop. They’re comfortable, stylish, and go really well with my evening outfits too. They feel just as much like a style accessory as they do part of my night routine.
Frayosh
Verified Customer
Amber Sleep GlassesIt greatly reduced my stress, helping me feel relaxed and less anxious. My sleep has improved, and I can wear the product anytime during the day. Additionally, the product is of superior quality.
Rushad Mirza
Verified Customer