After exposure to daytime bright light (6.5 hours), evening use of a tablet for two hours did not affect sleep in healthy young students.
“After exposure to daytime bright light (6.5 hours), evening use of a tablet for two hours did not affect sleep in healthy young students. The evening tablet use did not affect sleepiness and saliva melatonin levels before sleep, nor did it change the time to fall asleep or subsequent sleep.”