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All fourteen Sleep ZM lens tints, photographed through the lens itself. Drag any slider to see exactly what each one takes out of the light, and what it leaves alone. The blocking percentage and filter category on every card are the certified figures from our lab reports.
Every lens filters a different part of the spectrum. Here is what that looks like in practice.
Crystal-clear lenses that subtly reduce harsh artificial light while preserving true-to-life colors. Ideal for everyday wear, they provide comfortable vision whether you're working, commuting, or spending long hours indoors, all without the noticeable tint of traditional blue light glasses.
A light yellow tint that enhances visual contrast and softens the harsh blue light emitted by digital displays. Designed for extended screen use, it helps reduce visual fatigue while keeping colors natural enough for everyday work, gaming, and browsing.
A precision green tint engineered for creators, designers, and professionals who need enhanced blue light protection without sacrificing accurate color perception. It provides a balanced viewing experience that reduces visual fatigue while preserving the fidelity required for color-critical work.
A deep yellow-green tint built for harsh indoor light, not for the road. It takes the edge off fluorescent tubes, retail ceiling banks and bright reflective surfaces, lifting contrast so a room reads more evenly. At 38% visible light transmission this is a Category 2 lens — strong enough to change how a space looks, and not a lens to drive in after dark.
The one lens in the range certified for driving, and in daylight only. Indoors it sits close to clear; step outside and it darkens, moving between 57.98% and 23.76% transmission as the light changes, which keeps it within Category 1 to 2. It is the pair for a daytime commute — and the pair to take off once it is dark.
Polarised gray for full sun. It knocks back glare from water, snow and bright pavement while holding colour close to neutral, so the view stays natural rather than tinted. At 13% transmission this is a Category 3 lens for bright outdoor light — not one to wear indoors, and not one to drive in.
Combining the clarity of InvisiAid with built-in magnification, ReadAid makes reading books, labels, smartphones, and tablets easier while reducing the visual fatigue associated with prolonged close-up work. It's designed for those who want comfortable reading without the distraction of heavily tinted lenses.
A rose FL-41 tint tuned to a narrow band between 480 and 520nm — the range most associated with discomfort under fluorescent and LED lighting. Rather than darkening everything, it removes the part of the spectrum that stings and leaves the rest bright. At 67.56% visible light transmission it stays wearable indoors all day, and it is not a lens for driving after dark.
A deep brown FL-60 tint for people who find ordinary sunglasses are not enough. It cuts glare hard while keeping colours recognisable rather than flattening them, so a bright day stays manageable when light is painful. At 14.80% transmission this is a Category 3 lens: daylight only, and never after dark or in twilight.
Specially developed for environments dominated by fluorescent or rapidly flickering LED lighting, FlickerAid targets the wavelengths most commonly associated with visual discomfort. The result is a calmer, more stable viewing experience for offices, classrooms, hospitals, and other brightly lit indoor settings.
A gentle peach tint designed to create a softer, warmer visual environment as the day winds down. By filtering a substantial portion of blue light while maintaining a pleasant viewing experience, Serenity helps make evening screen time feel more comfortable and relaxing.
A soft lavender tint for eyes that find ordinary indoor lighting harsh. It blocks 59% of blue light between 400 and 500nm while letting 66% of visible light through, so a room loses its edge without losing its brightness. A Category 1 lens, comfortable to wear indoors through the afternoon and into the early evening.
A rich amber-orange tint that filters nearly all blue light, creating a warmer and more relaxing view of your surroundings. Perfect for evening screen time, it helps support your body's natural wind-down process while maintaining comfortable visibility indoors.
Deep red lenses provide the highest level of blue and green light filtering in the Sleep ZM lineup. Designed for nighttime use, they create an ultra-warm viewing experience that minimizes disruptive light exposure and helps promote a healthier sleep environment.
Jeff and Dot Smith's guide to living with light: which lens suits which hour, how light moves your body clock, and what to change before you reach for a different pair of glasses. Free, sent straight to your inbox.
