im similarly dubious about this.... only works by blue light hitting your retina, which meant your eye was open, which meant you were awake ie not even trying to sleep. also, circadian rhythms were proven to be unaffected even when living in a cave with no natural sunlight - so theres more to sleepiness than just light hitting your eyebaws

>only works by blue light hitting your retina, which meant your eye was open, which meant you were awake ie not even trying to sleep.

not necessarily - your eyelids aren't perfectly opaque

>also, circadian rhythms were proven to be unaffected even when living in a cave with no natural sunlight - so theres more to sleepiness than just light hitting your eyebaws

yeah, not disputing this. Blue light doesn't have to be the sole determinant to have an effect though