Skipping your normal cup of joe should help you fall asleep quicker, because caffeine is a stimulant. "I don't like people having caffeine after noontime if they have poor sleep, because it can hang out in the system for a long time," says Walsleben. Sleep better by eating certain foods before bed that will help you to relax. Watch this video for seven foods that will help you sleep. During sleep, pathways form between nerve cells (neurons) in your brain that help you remember new information you’ve learned. Sleep deprivation leaves your brain exhausted, so it can’t perform its duties as well.