The profiles point to ways to improve sleep and health. Taking sleeping pills may hamper your memory, for instance, but could benefit your social relationships. And sleeping for at least six to seven hours a night might boost your cognitive performance and diminish your aggression. “Sleep is very individual,” Kebets says. “But there are some things that can definitely improve sleep.” These factors include going to bed at around the same time every night, following a set bedtime routine, and not consuming alcohol right before you try to sleep.