← Back to browse
Sunlight Simulator
Shop on AmazonUse a bright artificial light or daylight simulator when natural sunlight is unavailable, especially in dark winter mornings or before sunrise. Turn it on soon after waking, or use it briefly before travel or to help shift your circadian timing. The goal is to provide a strong light cue to the brain’s circadian system, helping promote alertness and stabilize sleep-wake timing.
1 / 9
“Now, if you live in a part of the world where it's extremely dark and overcast, or the weather won't let you outside, or you live in a cave, there are sunlight simulators or daylight simulators that you can purchase.”
huberman · Essentials: Sleep Toolkit for Optimizing Sleep & Sleep-Wake Timing · Jun 11, 2026 · 6:17 · open ↗
All mentions9 clips