Fitovers + Fairlane Full Circadian System

Many users with photophobia or light-triggered headaches find relief by reducing exposure to fatigue-causing wavelengths.

Yes. Each lens plays a unique role in the full system. 

Daylights filter 75% of blue light, protecting you from screens and overhead lighting while still letting in the healthy blue you need for daytime energy and focus. 

Sunsets use a gradient lens that blocks 93% of blue & violet and 99% of green light. The darker red top shields you from harsh overheads, while the lighter yellow bottom keeps vision clear for evening tasks. 

Twilights go further, blocking 99% of blue, green, and violet light. EEG testing shows they shift your brainwaves into a rested state within minutes, helping you fall asleep faster and stay asleep longer. 

Together, Daylights keep you sharp, Sunsets ease you into rest, and Twilights deliver deep, restorative sleep. 

Junk light is the artificial light blasting from screens, LEDs, and overheads at the wrong time of day. Your brain treats light like a signal—and junk light sends the wrong one. It tells your body “it’s still daytime,” even late at night. The result? Junk sleep, junk energy, junk focus, and a biology that’s constantly out of rhythm.

 Wear Daylights after getting some natural sunlight in the morning. Aim for about 30 minutes of daylight first—then use Daylights to block junk light from screens, LEDs, CFLs, and other artificial sources throughout the day.

These are best for early evening. Wearing them during the day could block energizing light your brain needs to stay sharp.

Sunset lenses are for the transition hours—they block less than Twilights so you can still function while prepping for sleep.

TrueDark Sunsets work best in the early evening—about 30 minutes to 2 hours before bed. You can still read, use screens, or go through your nightly routine while your brain shifts into rest mode. By the time you hit the pillow, you're primed for faster, deeper sleep.

TrueDark Sunsets are ideal for managing time zone shifts while traveling. They’re also helpful in northern regions where it stays light late into the night. The lenses simulate early evening darkness, helping your brain ramp up melatonin and prepare for rest. 

Important Note: Do not drive or operate heavy machinery while wearing. Avoid activities that may be impacted by becoming tired, a change in depth perception, or changes on the color spectrum.TrueDark Sunsets are ideal for managing time zone shifts while traveling. They’re also helpful in northern regions where it stays light late into the night. The lenses simulate early evening darkness, helping your brain ramp up melatonin and prepare for rest. 

Important Note: Do not drive or operate heavy machinery while wearing. Avoid activities that may be impacted by becoming tired, a change in depth perception, or changes on the color spectrum.

Twilights are generally for nighttime use. Wearing them consistently during the day would block the healthy light your brain needs to stay energized and focused. There are instances where you can use these glasses to shift your circadian cycle, like if you are traveling to a different time zone. TrueDark Twilights are great for hacking jetlag. They can also help night shift workers fall asleep more easily, as they emulate complete darkness. EEG data shows TrueDark glasses can shift your brain into a calm, sleep-ready state within minutes.

Yes. Each lens plays a unique role in the full system. 

Daylights filter 75% of blue light, protecting you from screens and overhead lighting while still letting in the healthy blue you need for daytime energy and focus. 

Sunsets use a gradient lens that blocks 93% of blue & violet and 99% of green light. The darker red top shields you from harsh overheads, while the lighter yellow bottom keeps vision clear for evening tasks. 

Twilights go further, blocking 99% of blue, green, and violet light. EEG testing shows they shift your brainwaves into a rested state within minutes, helping you fall asleep faster and stay asleep longer. 

Together, Daylights keep you sharp, Sunsets ease you into rest, and Twilights deliver deep, restorative sleep. 

Wear 30 minutes before bed and anytime you may wake during the night. If you wake for any reason (to get a drink, bathroom break, or childcare), Twilights protect your circadian rhythm so you can fall back asleep quickly.

Twilights are especially helpful for shift workers, frequent flyers, and anyone struggling with sleep. By simulating total darkness, they’re an effective tool against jet lag and irregular sleep schedules.

No. Twilights are designed to block the harshest junklight while still allowing enough safe visibility for nighttime tasks. You’ll be able to move around comfortably without overstimulating your brain.

Important Note: Do not drive or operate heavy machinery while wearing. Avoid activities that may be impacted by becoming tired, a change in depth perception, or changes on the color spectrum