If you’re only getting a minimal amount of sleep each night, that leaves more time for you to snack and make otherwise unhealthy decisions that could affect your weight loss. Although it will vary from person to person on how much sleep you actually need to be most effective (and therefore make progress toward your weight loss goals), the ideal number is typically 7 or 8 hours, says Dr. Cheskin. (Struggling to get that shut-eye? This doctor-approved breathing exercise will help you fall asleep fast.)
It's normal to feel a few hunger pangs when you cut your calorie intake, but you don't want to feel ravenous. Filling your diet with low energy-density foods -- ones that have a low calorie count per gram -- allows you to fill up on larger portions while controlling your calorie intake. Many of these foods also supply water and fiber, which can make you feel full, to help with weight loss.