Leanne Manas Weight Loss - If you think you have an eating disorder, talk to someone you trust and consider speaking to your GP. There are also several organisations that can provide you with information and advice, such as the eating disorders charity Beat. We also know that even after a moderate amount of sleep deprivation, you’re likely to eat more the next day. And lack of sleep makes you more likely to eat more of your overall calories at night, which can lead to weight gain. With that in mind, it feels like a good time for a check-in about ways sleep deprivation can interfere with your health, your safety, your relationships, and your performance.