wake-lights
SmartSleep Connected Sleep and Wake-Up Light
Philips is the industry leader with the most robust clinical backing. The HF3670 uses high-CRI LEDs that accurately mimic the spectral progression of a natural sunrise, which has been shown in independent studies to improve the 'cortisol awakening response'.
Quality & Materials
Uses high-performance LEDs capable of 315 Lux. The spectrum shifts from deep reds to bright whites without the PWM flickering found in cheaper units.
Evidence & Testing
The only brand with multiple peer-reviewed RCTs specifically on their hardware. Studies show improved self-reported mood and objective alertness upon waking.
Brand Transparency
Value Assessment
High upfront cost, but the build quality and clinical validation justify the premium for those with seasonal affective issues or difficult mornings.
Why Not Alternatives?
Unlike budget competitors (like JALL or hOmeLabs), Philips uses high-quality LEDs that don't flicker and provides specific lux measurements at various distances. It avoids the 'blue-spike' common in cheap LEDs that can actually disrupt circadian timing if used improperly.
Sources & References
More in Circadian & Light
Ra Optics
Sunset Lenses (Clyde Frame)
Ra Optics is the industry leader in precision optics for circadian health, utilizing proprietary pigments that provide a sharp 550nm cutoff. Unlike most competitors, they use high-quality CR-39 plastic lenses which offer superior optical clarity compared to cheap polycarbonate.
Bon Charge
Sleep Blue Light Blocking Glasses
Bon Charge (formerly BluBlox) offers laboratory-tested lenses that block 100% of the blue and green light spectrum from 400nm to 550nm. Their frames are exceptionally high quality, and they offer prescription, reading, and non-prescription options.
BlockBlueLight
NightLens Blue Light Blocking Glasses
BlockBlueLight offers the best balance of clinical-grade spectrum accuracy and affordability. Their NightLens is specifically designed to block 100% of blue and green light up to 550nm, backed by accessible spectral analysis reports.
Swanwick
Classic Night Swannies
Swanwick is the brand that popularized blue blockers for sleep. Their orange 'Swannies' are effective at blocking blue light and are a reliable, well-reviewed entry point for those new to circadian optimization.