My Elvis is a male desert tortoise between 20-40 years of age. When I took over Elvis as my ward a year and a half ago, he went straight into a double box for four months (November 1st). A novice, I was scared that he wouldn't survive... wrong. During that time I went to work on a tortoise garden with all the natural food, grasses, aloe, hibiscus, etc... I read would be either being beneficial or not toxic to injest. Elvis survived ME! Then it became clear to me that Elvis, and I must mention that I live in idealic southern California where it can get to the 30's at night and a blistering 105 during the summer heat, that my climes appear to be equal to the local deserts. Elvis is a pro. He survived way back then...figuring things out. So, I built three differant burrows so he could figure out which one would suit him when the sun is too much, or the rain to wet, or...ta da! His brumation period. His burrow that he selected goes into a slope about eight feet. He made his little mound to keep heavy rains out. He dug deeper so he could be more protected from predators. In middle November he crawled in and went to sleep. Lo and behold, the unusually warm weather, like many of your tortoises, caused Elvis to peak his head out to ungrog his tiny, sleepy brain earlier than normal. Elvis knows! Now he basks in the home I created for him. Dines on dandelion greens, hibiscus and dichondra and bermuda grass. And it's natural.... I get it. It doesn't work for everyone. But for where I live, it works for Elvis. He's a survivor!