SleepBlocks below 557 nm

Sleep ZM

SleepAid

Amazon

The verdict

A moderate evening lens. It blocks 92% of body-clock light, but 26 lenses block more, and under a warm 2700K bulb about 13% still gets through.

It takes the edge off evening light, but on its own it is not enough for sleep under bright lighting.

Measured Sep 16, 2026 · 350 to 950 nm · how I test

Sleep strength

Moderate

92% melanopic blocked

#27 of 61 lenses

Clarity

Medium

49% of visible light passes

#33 of 61 lenses

Tint

Deep orange

Blocks below 557 nm

Colors look warm and muted

Red + near-IR

Passes

91% of 600 to 950 nm

Long wavelengths get through

Under your lights

Pick a light to see what the lens lets through.

49%of visible light gets through, cutting in at 557 nm
400 nm500 nm600 nm700 nm800 nm900 nmUVNear-infrared
What gets through the lens

How the world looks through it

Drag the handle. Left of the line is through the lens.

A woman draws colorful digital art on a graphics tablet at a wooden desk in a bright, modern office with bookshelves and other people working in the background.With lensWithout
WithoutWith lens
White page
Skin
Sky
Phone screen
Leaves
Red
Wood
Night sky

Simulated from the lens's measured color. A lens that blocks blue and green darkens cool colors and keeps warm ones.

Where it ranks

All 61 lenses. Up blocks more body-clock light, right is clearer. The best tradeoffs sit on the green line. Tap any dot.

99.7%99%95%90%50%0%0%20%40%60%80%100%Clarity (VLT) →Melanopic blocked →This lens

Selected

Sleep ZM SleepAid

92% blocked · 49% clarity · $36

Sleep ZM sells this lens in

Standard framesFits over glassesClip-onWraparoundKids sizesMetal alloyAnti-reflectiveScratch resistantShips to US