Cal (Night)

Cal (Night) is the frame for the cooler younger sibling, built for evenings and sleep preparation. Deep amber and red lenses block virtually all blue and green light, helping support healthy melatonin production and a restful wind-down before bed.

• Clean, classic style: A sturdy black oval frame with easy, confident appeal.
• Nighttime focus: Deep amber/red lenses block virtually all blue and green light to reduce melatonin suppression.
• Evening-focused use: Wear 2–3 hours before bed to help your child wind down and sleep better.
• Fits your routine: Available in Non-Prescription, Readers, and Prescription options.

Cal (Night) is a simple, elegant way to help your child reconnect with the signals of life and build healthier sleep habits.

Independently lab-tested: 99% melanopic light blocked, 94% red/NIR passed

Cal (Night) uses BioSpectral's Night lens technology, independently spectrometer-tested (350–950nm) against 7 competitor brands. It blocks 99% of melanopic light — tying for the best of all lenses tested — and passes 94% of red/near-infrared light, the highest pass-through of any brand tested. See the full independent comparison data.