'Tis the season for bears to hibernate, and that goes for bears at the Denver Zoo too, it seems. Take a look at this female grizzly making her den.

Who doesn't just want to curl up and be tucked away in winter? The Denver Zoo recently tweeted about how one of their grizzlies is so comfortable in their habitat at the zoo that she made a den for winter.

It makes me want to take a nap, myself.