I like when it's winter and I wake up and my room is somewhere in the 40s because I like having the windows open in the winter and everything is terrifyingly cold except for the perfect cocoon of warmth that I've constructed. My favorite time is the two minutes I give myself to stay in my cocoon and mock the cold until I have to get up and actually do things. Sometimes if I don't have anything to do, I'll take my shower then come back and lie there some more and soak in the cold and shiver myself up to a better temperature for several minutes before getting dressed. I'm very of a "mind over matter" mindset with the cold, but my matter often disagrees with me. Still, I love it.