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This pair
Sleepaxa Hudson Crystal Clear DayActive™ Yellow Glasses
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15% discount applies automatically at checkout.
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In-stock frames · zero power & prescription
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Progressive lenses · only if you have distance + near power
Choose a progressive only if your prescription has both distance and near power.
Lens quality
Standard lenses from our own Indian lab — included free.
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Sleep - Amber or Red
Sleepaxa Hudson Crystal Clear DayActive™ Yellow Glasses – Screens, Office & Gaming | American Classic Wayfarer, USA-Inspired Design, Spring Hinges
Blocks 100% of blue and green light to 550nm, so your body starts making melatonin on time.
Size52-19-145
Front width139mm
Lens height40mm
FitMedium
ShapeWayfarer
Rs. 4,999.00Rs. 7,999.0038% off
Delivery in 4-6 working days
6-month lens warranty
1-year frame warranty
Cut and finished in Sleepaxa Lab
Spectrometer lab reports
Third-party spectrophotometer readings for this exact lens. Every batch is verified before it ships.
GRANTED
Two Indian patents
587746 and 597482, verifiable on the government IPO registry. Four more pending.
IN-HOUSE
Our own optical lab
Zero power through progressive and high index, cut and finished in Surat.
OVERSIGHT
Clinical advisor
Prof. Monica Chaudhry, 37 years in optometry, formerly AIIMS.
What this lens actually does
Everything left of the line is stopped.
Most blue-light lenses shave a little off the blue band. This one holds a hard cutoff at 550nm, which is where the research on melatonin suppression actually sits. Every batch is checked on a spectrophotometer before it ships.
380nm450nm550nm650nm780nm
The fit
Will this fit me?The three numbers inside your arm
Turn over the arm of the glasses you wear now. Three numbers are printed inside, something like 52-18-140. That is lens width, bridge, and arm length in millimetres.
This frame is 52-19-145 and 139mm across the front. If your current pair slides down your nose, you want a narrower bridge. If it presses on the sides of your nose, you want a wider one.
| Lens width | 52mm |
| Bridge | 19mm |
| Arm length | 145mm |
| Front width | 139mm |
| Lens height | 40mm |
| Size | Medium |
The lens
Amber or Red?Two tints, two jobs
Sleepaxa Amber
100% block at 500nm, allows green
The all-day pair. Indoor and outdoor, day or evening, screen comfort with colour balance kept. No time limit.
Sleepaxa Red
100% block at 550nm, no blue or green
For severe sleep trouble. Indoor only, 30 to 60 minutes before bed. Maximum melatonin, deepest sleep prep.
If you can only take one pair, take Amber. Most customers add Red later.
Prescription and lens index1.56 to 1.74
Upload your prescription above, or send a photo on WhatsApp after ordering. Our optical team confirms the details before anything is cut. Prescription orders dispatch in 7 to 9 working days.
| 1.56 standard | included |
| 1.67 thinner, moderate power | +₹1,999 |
| 1.74 slimmest, high power | +₹2,999 |
| Progressive, wide corridor | +₹2,999 |
Everything else
Full product detailsFrame, science, specification
Sleepaxa Hudson Crystal Clear DayActive™ Yellow Glasses — the Hudson frame, now fitted with Sleepaxa DayActive™ yellow lenses for daytime screen work, office hours and gaming.
Why DayActive™
- Filters the harsh 380–450 nm screen-blue band
- Reduces digital glare and reflections
- Enhances on-screen contrast and sharpness
- Helps reduce screen fatigue during long sessions
- Light yellow tint keeps daytime vision clear and natural
Lens Technology
- MR8 1.56 index DayActive™ yellow lens
- Blue-cut filter with high-grade anti-reflective coating
- Super hydrophobic + oleophobic coating (repels water, sweat, oil and smudges)
- High-density scratch-resistant hard coat
- Available in Zero Power and Prescription, with 1.67 / 1.74 thin-lens upgrades
Frame Details
- Model: Hudson
- Colour: Crystal Clear
- Material: Pure Cellulose Acetate
- Shape: Wayfarer
- Size: 52-19-145 (frame width 139 mm, lens height 40 mm)
- Fit: Medium
- Hinges: Spring
Day to Night with Sleepaxa
Wear DayActive™ yellow during the day. For evenings and before bed, the same Hudson frame is also available with Sleepaxa Sleep Amber and Sleep Red lenses.
In the box: hard case, pouch and cleaning cloth. 1-year warranty on frames.
Shipping, returns, warranty and care
| Zero power dispatch | 4-6 working days |
| Prescription dispatch | 7-9 working days |
| Returns, zero power | 7 days, unused |
| Frame warranty | 1 year |
| Lens coating warranty | 6 months |
Microfibre cloth, or lukewarm water with a drop of mild soap. Never tissue, paper, or your shirt, all three scratch the coating. Store in the hard case, away from a car dashboard.
Still deciding?
Tint, prescription, lens index, frame fit. Real people, fast replies.
Trusted by 50,000+ Indians
Real Stories.
Real Comfort.
No paid actors. No scripts. Just Indians, sharing their Sleepaxa experience.
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50,000+Happy Indians
4.7/5Verified Rating
IN 587746Patent Granted
DPIITRecognised
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