Forget grumpy old men, it’s the women who are said to out-grump their counterparts in the morning according to a new sleep study by Duke University.

CBS News reports that the study revealed how lack of sleep can put women at higher risk for heart disease, depression and psychological problems, while alternatively lack of sleep in men shows no increased risk of these health factors affecting women.

“In this particular study, women had more depression, anger, and hostility early in the mornings when they weren’t getting the same amount of sleep than they normally get,” said Michael Breus, a clinical psychologist, sleep expert and author of The Sleep Doctor’s Diet Plan. “When they have problems falling asleep, staying asleep, that seems to have a dramatic effect.”

So of course we have to ask…in your experience, who do you find is grumpier in the morning; men or women?! Vote below!