1. YOU WORK INTO THE WEE HOURS Not only do solid sleep hours keep you energized throughout the day, they also help keep you slim, too. Researchers at Wake Forest proved that maintaining a healthy sleep schedule is crucial for keeping your tummy tight. In fact, they found that dieters who sleep five hours or less gain 2.5 times more weight than those who sleep between seven and eight hours. Overdoing it can also be bad: Those who slept more than eight hours packed on only slightly less than those who slept fewer than five. Shoot for an average of six to eight hours of sleep per night, which is the optimal amount for weight control. Eat This! Tip: Forget sheep; eat lamb or turkey for dinner. Both, are high in Tryptophan, an amino acid that has demonstrated an impressive sleep-inducing effect. In fact, in a study, insomniacs were able to get a better night’s rest after consuming just ¼ of a gram, which is what you’d find in a skinless chicken drumstick.