
Alrighty in that case, a really warm bed is better. As we sleep, our core body temp decreases, so adjusting to a warm bed should be doable, though you might need to remove a blanket or some clothes. In a perpetually cold bed though, the warmth from your body would be sapped from you continuously until you wake up feeling cold to the very core of your being. I’ve had this happen just by sleeping without a blanket in a ~70° room, even had a cardigan and socks on since I knew my core temp would-
Well, saying I was cold to the core of my being in that instance is a bit of an exaggeration, but my lips were bluish from how cold I was and I couldn’t stop shaking until I got some warm food in me. If you were making direct contact with something that was perpetually cold like that though, that wouldn’t be an exaggeration