Sleep & Circadian Favorite
Protect your eyes,
fix your sleep.
These are the blue-light blocking glasses I wear every single day — Daylight lenses at my desk, Twilight lenses after sunset. The exact blocking percentages matter, and TrueDark is one of the only brands that publishes theirs. If you're struggling with sleep, eye strain, or circadian disruption, this is where I'd start.
How I Use Them
Two lenses,
one system
I wear Daylight lenses all day at my computer, then switch to Twilight lenses after the sun goes down. It's a simple two-step system that protects your eyes during the day and tells your brain it's time to wind down at night.
Daytime Protection & Less Eye Strain
The Daylight lenses filter the harshest blue-light frequencies from screens while keeping your color perception natural. I wear these from the moment I sit down at my desk until sunset. If you get headaches from screen time, dry eyes, or that wired-but-tired feeling by afternoon — these are for you.
All-Day Screen Use
Wear at your desk, on your phone, watching TV during the day — filters the harmful blue-light frequencies without distorting color.
Headache & Eye Strain Relief
If screens give you headaches or dry eyes by mid-afternoon, the Daylight lenses take the edge off immediately.
Preserves Daytime Alertness
Daylight lenses let through the frequencies you need for focus and energy — they only block what harms you.
True Color Perception
Unlike heavy amber tints, Daylight lenses keep colors accurate — important for creative work and everyday use.
Evening Wind-Down & Deep Sleep
After sunset, I switch to the Twilight lenses. These block virtually all blue and green light — the frequencies that suppress melatonin production and keep your brain in daytime mode. Within a week of wearing these every evening, my sleep quality completely changed. I fall asleep faster and stay asleep longer.
Melatonin Protection
Blue and green light after dark suppresses melatonin. Twilight lenses block those frequencies so your body can produce what it needs for sleep.
Evening Screen Time
Watch TV, scroll your phone, read on a tablet — without disrupting your circadian rhythm or delaying sleep onset.
Fall Asleep Faster
Most people notice a difference within the first week. Your brain gets the signal that it is nighttime and starts winding down naturally.
Circadian Rhythm Reset
If your sleep schedule is off, jet lag, or shift work — Twilight lenses help reset your internal clock by controlling light exposure.
Why It Works
The science behind light
Circadian Alignment
Your master clock relies on light signals to regulate sleep, hormones, and metabolism. Blocking the wrong frequencies at the right times keeps everything in sync.
Melatonin Production
Blue and green light after sunset suppresses melatonin by up to 50%. Twilight lenses remove those frequencies so your body can do what it was designed to do.
Reduced Eye Strain
High-energy blue light causes digital eye strain, headaches, and fatigue. Filtering it during screen time gives your eyes measurable relief.
Better Energy Cycles
When your circadian rhythm is aligned, you get natural energy during the day and natural tiredness at night — no caffeine crash or 3pm slump.
Part of the bigger picture
This product shows up in these guides because I use it as part of a complete approach to healing.
Join the Healing Community
Get my best wellness tips, product recommendations, and guide updates delivered to your inbox.