If you want to feel rested and focussed during the day, it's important that you protect those precious nighttime hours. "For deeper, more restful sleep, you should actually prepare for it at least one hour before you want to fall asleep," Hidary told POPSUGAR. Try putting your phone away — even if it's just tucked into the drawer of your nightstand — at least an hour before bed, instead of mindlessly scrolling through TikTok until the wee hours.