When I asked the original question, I was looking for more than a poll; I was hoping someone had some insight into which of the two views to go with here (i.e.

When I asked the original question, I was looking for more than a poll; I was hoping someone had some insight into which of the two views to go with here (i.e. whether the evolutionary reasons for the sleepier-in-winter phenomenon are still applicable today or not). You've made it clear which side you're on, without any substantive argument yet. In hopes of eliciting one, I'll play devil's advocate. Food has always been scarcest in winter. The smart move is to invest less when risk/reward is poorer. A straightforward way for mammals to do that is to conserve energy by sleeping more in the winter. So, there's a reason I'd expect mammals to have evolved to sleep more when there's less light, but this reason is no longer applicable in modern societies. Right?