Any suggestions on how to make a small dogloo as warm as possible for feral who's really starting to hang around? Currently has added layer of insulation taped all over inside, inside is stuffed with straw up sides as high as possible, straw on floor, covered by electric outdoor sanctioned cat bed mat heater. More straw mounded toward entrance, entire thing is up on bricks so not on ground, and added an angle piece of plexiglass so it a-frames down from top to front of dogloo entrance to ground (cat can see through but blocks a lot of wind, rain,etc. Thinking about snuggling a I& H heated house inside it for extra warmth -has anyone tried that?i worry the pad isn't enough -particularly given relative large opening for entrance of dog gloo.....thoughts? My hubby swears it's as good as it can get -and better than most ferals get it, but he's rapidly becoming a part of the family (almost) and I want him as comfy as possible (maybe at some point inside but he's not there yet).