Recent research has focused on the link between sleep and the peptides that regulate appetite. “Ghrelin stimulates hunger and leptin signals satiety to the brain and suppresses appetite,” says Allison Siebern, a consulting assistant professor at the Stanford School of Medicine Sleep Center, the birthplace of clinical sleep medicine and pioneering sleep research. “Shortened sleep time is associated with decreases in leptin and elevations in ghrelin.”
Not only does sleep loss appear to stimulate appetite. It also stimulates cravings for high-fat, high-carbohydrate foods. Ongoing studies are considering whether adequate sleep should be a standard part of weight loss programs.
In addition, sleep disorders and chronic sleep loss can put you at risk for:insomnia -- a sleep disorder characterized by trouble falling and staying asleep -- also have another health condition.
Sleeping and Weight Loss excerpts from https://www.webmd.com/sleep-disorders/features/10-results-sleep-loss#1