01 · Sleep
Tired turns into asleep
Without the daytime signal, melatonin rises on time, so lying in bed stops being a waiting room.
Meridiani Planum · 1.9°S 5.5°W
Meridiani
Basalt acetate · Sol day lenses
Day lenses for screens and bright light.
Easier screen daysTakes the harsh edge off blue light from screens and LED panels.
Colours stay readableA pale yellow tint, light enough for spreadsheets and video calls.
Swap at sunsetPair with Noctis for the last two hours of your day.
Hand-polished acetateEach frame named for a real place on Mars.
About Meridiani
Your eyes work a 10-hour screen shift. Sol lenses filter up to 90% of the high-energy blue light from screens and LED panels, with a soft yellow tint that keeps colours readable at your desk.
Meridiani is a heavy flat-top, diamond rivets frame in polished black acetate. Our heaviest acetate, hand-finished. The flagship.
Pair it with the matching Noctis night lenses in the Day + Night set and save.
Meridiani Planum · 1.9°S 5.5°W. Opportunity landed here in 2004 for a 90-day mission and kept driving for 14 years.
How to wear Sol
Wear Sol at your desk, on long screen days and under bright LED panels. Swap to Noctis two hours before bed.
Lens and frame
LensSol · pale yellow
BlocksUp to 90% of blue light from 400–480 nm
FrameBasalt acetate
ShapeHeavy flat-top, diamond rivets
Size (lens □ bridge · temple)50 □ 22 · 150 mm
FitWide
Our heaviest acetate, hand-finished. The flagship.
In the box
Your frame with lenses fitted, a hard case, a microfibre cloth, and a blue-light test card so you can see the block for yourself.
Shipping and returns
Free tracked US shipping, 5–8 business days.
30-night guarantee: start a return within 30 days of delivery for a full refund.
Meridiani · Basalt$569
Sound familiar?
The last hour of your day is still daytime to your brain.
Small habits, big nights. This is where tomorrow’s energy is decided.
90%
Still on a screen in the hour before bed?
About 90% of Americans use a phone, laptop, TV or tablet in the hour before bed at least a few nights a week.
National Sleep Foundation · Sleep in America Poll · 2011
1 in 3
Tired, but your brain won’t switch off?
About one in three US adults regularly sleeps less than the 7 hours their body needs.
CDC · Morbidity and Mortality Weekly Report · 2016
1.5 h
Slept, but still wake up heavy?
Reading on a light-emitting tablet before bed pushed melatonin back by over 90 minutes and left people less alert the next morning.
Chang et al. · PNAS · 2015
Why you can’t fall asleepScreens and LEDs pour out the blue-green light your brain reads as noon, so melatonin waits.
Why you wake up tiredSleep starts late, but the alarm doesn’t. The hours you lose come out of your deep sleep.
Why it keeps happeningA body clock pushed late tonight starts late tomorrow, and the loop repeats.
Not all orange is the same
An orange tint isn’t a night lens.
Most blue-light glasses look alike in a photo. Here is what is actually different.
Maison Marsani · Noctis
Typical blue-light glasses
Blocks 99% of 400–550 nmBlue and green, including the 480 nm band your body clock reads.
Stops around 450 nmClear lenses trim violet. Cheap tints let green through.
Tint in the lens, not on itThe colour is part of the lens, so it can’t scratch or wear off.
Sprayed-on coatingScratches thin the coating, and the block goes with it.
Hand-polished acetateDense, warm frames you can adjust for a proper fit.
Thin injected plasticLight, bendy, and it shows.
Test card in the boxShine a blue light through it and see the block yourself.
Take their word for itNo way to check what you bought.
30 nights to sleep on itNot sleeping better? Send them back for a full refund.
Short return windowsOften unworn-only, or store credit.
99%
of 400–550 nm blocked
10–30%
clear lenses, 400–450 nm only
What changes
What two amber hours do.
02 · Mornings
Mornings feel like morning
A body clock that isn’t pushed later by screens means the alarm stops feeling like 4 am.
03 · Days
Screen days, softer
Sol takes the glare out of long screen days, so you reach the evening less wired.
Lens Lab
See your room the way your body clock will.
Pick a lens and drag the line. Then turn on your camera and point it at your lamp, your phone or your laptop: that is the light Noctis stops before it reaches you.
Lens
Blue + green light reaching you
1%
380480 nm · body-clock peak780
Your camera feed stays on your device. Nothing is recorded or uploaded.
Shop NoctisTwo lenses, one day
A lens for the day. A lens for the night.
Your body runs on light: bright and blue to wake you up, dim and warm to wind you down. Our two lenses give you both.
Noctis · night
Noctis night lenses
Deep amber lenses for the last two hours before bed. They block the blue and green light that holds back melatonin, the hormone that makes you sleepy.
When · The last 2 hours before bed
Blocks · 99% of blue and green light, 400–550 nm
Best for · Phones, TV and reading lamps after dark
Sol · day
Sol day lenses
Pale yellow lenses for the hours you spend at screens and under LED panels. They take the harsh edge off blue light and keep colours easy to read.
When · Daytime, at screens and under LEDs
Blocks · Up to 90% of high-energy blue light, 400–480 nm
Best for · Laptops, monitors and office LEDs
The Noctis hour
Tell us when you sleep. We’ll set your sunset.
Noctis goes on two hours before bed. Set your bedtime and the dial shows your window for tonight and every night, then add a reminder so you never miss it.
Your Noctis hour starts at 21:00.
Noctis on21:00
Lights out23:00
Wake up (8 hours later)07:00
Times use your device clock. The reminder adds a daily calendar alert; your bedtime stays on this device.
Reviews
What people say after 30 nights.
—
Questions
Before you put them on.
Still curious? Write to us from the contact page.
Do blue light glasses actually help you sleep?
Clear “blue light” lenses don’t do much at night: they only trim part of 400–450 nm. Amber lenses that block blue and green light are different. In a randomised trial, people who wore amber lenses for three hours before bed reported better sleep than people in yellow placebo lenses (Burkhart & Phelps, 2009), and a small 2018 study found the same for people with insomnia (Shechter et al., Journal of Psychiatric Research).
When should I wear Noctis?
Put them on two hours before bed and keep them on until lights out: phone, TV, reading, all of it. If you wake in the night, put them on before you switch on a light.
Can I drive in them?
Not after dark. Noctis is a tinted evening lens for indoors; don’t wear it for night driving. Sol is fine for daytime screen work.
What’s the difference between Noctis and Sol?
Noctis is deep amber and blocks 99% of light from 400 to 550 nm, for the last two hours of your day. Sol is pale yellow and filters up to 90% of blue light from 400 to 480 nm, for daytime screens and LED offices.
What is the Day + Night set?
The same frame twice: one pair with Sol lenses and one with Noctis. Choose “Day + Night set” on any frame’s page. It costs less than buying both pairs separately.
Do you make prescription lenses?
Not yet. Every Marsani frame is non-prescription today.
How do returns work?
Wear them for 30 nights. If you’re not sleeping better, start a return within 30 days of delivery for a full refund. The details are in our refund policy.
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The journal
Read up before lights out.
Oct 26, 2026 · 2 min read
How NASA rethought light on the Space Station, and what it means for your bedroom
Astronauts see about 16 sunrises a day. To help them sleep, NASA replaced the station’s lights with LEDs that change colour through the day. Your home...
Read →
Oct 26, 2026 · 1 min read
The two-hour rule: what evening light does to your melatonin
Your melatonin starts rising about two hours before you fall asleep. That is exactly when most of us are lit up by phones, TVs and ceiling...
Read →
Oct 26, 2026 · 2 min read
Why clear blue-light glasses don’t help you sleep
Most “blue light” glasses are clear, and clear lenses stop short of the colour your body clock actually reads. Here is what the research says, and...
Read →