LAB-TESTED REVIEWS
Sleep Better.
Light Smarter.
Feel the Diff.
We measure what other sites guess. Spectral data, melanopic lux, flicker — tested on 200+ products so you can buy with confidence.
200+
Products Tested
70+
SAD Lamps
100+
Blue Blockers
Lab Data
Not Opinions
Compare Products with Real Data
Filter and sort by the metrics that actually matter — melanopic lux, CRI, flicker risk, and more.
☀️ SAD Lamp Database
Tested for melanopic EDI, lux at distance, glare risk & spectrum quality
70+ lamps tested
👓 Blue Blocker Database
Spectral filtration data, lens category, daytime vs nighttime ratings
120+ glasses tested
🌈 Smart Light Database
CRI, R9, color temp, flicker index — every bulb measured, not claimed
110+ lights tested
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The 5 Best Natural Full Spectrum Light Bulbs: Lab Tested (2026)
We tested CRI, R9, and flicker. See why Sunsy Shine beats standard LEDs. Discover the best natural light bulbs for your home and health.
10 minutes -
The 4 Best Blue Light Blocking Glasses for Sleep (Lab Tested)
We tested 120+ pairs of blue blockers. See our spectral data for TrueDark, Infield, and BlockBlueLight to find the best glasses for sleep.
6 minutes -
Best Sunrise Alarm Clocks 2026: I Tested 15 With a Light Meter
I tested 15 sunrise alarm clocks with a spectrometer and flicker meter. Top picks measured: Lumie Shine 300 hits 360 lux at the bedside, Hue Twilight hits 395.
32 minutes -
Best Overnight Pulse Oximeters for Sleep Apnea (Lab Tested)
Sleep apnea leaving you exhausted? We spent 480 hours lab-testing the best overnight pulse oximeters against a $1,500 hospital monitor. See the winners!
27 minutes
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How to Build a DIY Vitamin D Lamp (Cheap & Effective)
Stop winter deficiency. Learn how to build a powerful UVB sun lamp at home. We compare our DIY build vs. Sperti and review the best bulbs to use.
11 minutes -
How to Set Up a Smart Light Sunrise Alarm: The Ultimate Guide
Can smart lights replace a sunrise alarm clock? We tested Philips Hue, LIFX, and IKEA to find the best wake-up setup for your bedroom.
13 minutes -
How to Mimic Sunlight Indoors: The Ultimate Guide
Trapped inside? Learn how to recreate natural sunlight using full-spectrum LEDs and halogen bulbs. Optimize your home lighting for energy and better sleep.
25 minutes -
The Zero Gravity Sleep Position: The Ultimate Guide
Mimic the “Neutral Body Posture” found in space. We explain the science of zero gravity sleep and why it’s better for brain health and heart circulation.
9 minutes
Your body clock runs on light. Most of us feed it the wrong light at the wrong time.
Get that one input right and the rest follows — falling asleep on time, waking up without feeling drugged, getting through winter. The Circadian Blueprint is 95 pages on how to set your circadian rhythm with light: the timing, the doses, and which products actually deliver them. Every number in it came off my own spectrometer, not another article.
📘 The Circadian Blueprint
How to set your circadian rhythm with light. 95 pages, free.
Plus a short note each month on what I’ve tested. Unsubscribe anytime.