I do like cold nights for sleeping. By cold, I mean 5C (41F) or lower. If it's above 10C (50F) I'll leave the windows open a crack, and the heat will be off or set back.
I like the weight of the blankets, not so much the warmth.
With all her meds, my wife tends to be hot. Yep, she's my hottie.
Glad all you folks are sleeping well!