What you put in your coffee or tea can also make a difference. Poor sleep can disrupt your appetite in different ways, but one thing you might notice is a proclivity for sugary foods. âWe tend to crave sweets when weâre sleep-deprived,â Aronson says. But when sugar seems to be calling to you after a bad night, âit may be more about feeding a craving,â she says. It might be tempting to load your coffee with fatty cream and sugar, but youâre better off resisting as it can perpetuate poor sleep, she says. 4. Take a nap Credit: Getty Images / sturti