I dont because for one my room stays about 80 and I like to keep my rats (what few I have) in a somewhat cooler environment. And I dont want the smell of rodents in my room all the time so when I go to handle my snakes they arent thinking its feeding time cuz I dont want a confused snake chomping down on my fingers! I personally would discourage it but there may be others that do keep their rats in the same room as their snakes...