My childhood memories are dotted with someone snuggling a nice warm bottle next to my feet. Vague comforting memories of somebody taking care of me and tucking me into bed with that bottle and teddy bear. Steaming hot at first with a towel wrapped around to ward off burns. Then by morning the hot water bottle would have cooled off until it was simply lukewarm to the touch.
Occasionally when the cold gets to much for me I still boil up a hot water bottle. It's just about the most comforting feeling in the world for me, but I want to upgrade. I've found a cashmere cover! It makes the mundane just a little more special. Obviously I must get the pink one.