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A comment on Light exposure during sleep impairs cardiometabolic function. Parent comment
Small correction: not metal, these are (mostly) made out of plastic nowadays, sometimes aluminum, and earlier, from wood.
But yes, the effect if they aren't fully closed, is nicely adjustable to limit light without making a room pitch fark.
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Small correction: not metal, these are (mostly) made out of plastic nowadays, sometimes aluminum, and earlier, from wood.
But yes, the effect if they aren't fully closed, is nicely adjustable to limit light without making a room pitch fark.