Hi! Mine feels cool to the touch only if it hasn't been in the warm hide for awhile. You're using a UTH mat, right? Our BP's prior owner didn't have one, using only an overhead lamp, and it felt cold the first time I touched it. Also, if using a UTH but with a deep amount of substrate, if measuring temps on the bottom of the cage, they will be warmer than the temp on top of the substrate.

Strange that it curls up outside of the hides.

At 2 feet long, a hopper sounds too small. Ours was about 22"/5 months old when we got it, still being fed hoppers, and I quickly found out that hoppers were way too small. It has filled out nicely since moving onto medium and then large mice.