an hour before bed National Sleep Foundation with an electronic device NSF website National Sleep Foundation an hour before bed sleep hygiene experts Numerous studies plugged in to the workplace circadian rhythms bright, artificial light According to the National Sleep Foundation 45 to 60 minutes National Sleep Foundation Sleep Foundation Electronics in the bedroom emit a light that tricks your body recent studies Sleep Foundation electronic devices studies National Sleep Foundation The National Sleep Foundation National Sleep Foundation all electronic devices advice article screen time before bed is bad for your sleep National Sleep Association electronics at night screens söylense Scientific data has shown we fall asleep National Sleep Foundation National Sleep Foundation sleepfoundation.org Technology Research screens emit a light that tricks your body according to the National Sleep Foundation