I have a 5 yr old Buff Orpington who insists on using the highest roost at night and then waits every morning for me to come get her down so she doesn't have to fly/jump down. It's actually quite comical because she will chew me out if I take too long getting her highness down from the roost.My 8.5 year old hen had a seed warming mat under her bit of faux grass carpet in her private pen to keep her feet warm. I had a piece of tile on top of it, then the mat and then the grass mat. So I basically made her underfloor heating for her coop....HA!

