Obviously you're not going to sleep yourself skinny, but did you know that spending quality time between the sheets can contribute to healthy weight? Keeping your body in a steady rhythm—by getting not too much or too little sleep— not only helps you focus on your healthy eating goals, it manages important functions like body temperature and hormones, which ultimately affect your figure. Getting your perk from a good night's sleep (aim for 8 hours) also means you won't be dependent on those mid-afternoon caloric pick-me-ups.