I am having trouble getting my enclosure to be hot enough in the basking area? I am using a day glo 60 watt and have some nice river type large rocks to try to hold the heat, but the hot area is still only 85, what else can I do. I should mention I have a huge fear of fire, noone is home during the day from 6-3 so a fire is my worst nightmare with all of my animals inside it really freaks me out! My Sulcata is in a plastice rubbermade container so what can I use to warm up the warm side? Thanks for any help!