weird December here, too - for several weeks I've slept under a sheet with the fan blowing over the bed, last night I put on a jacket that lives on the back of my office chair & got out my 2 shawls, one is a thin blanket made from 2 cheap "pashimas" that I used folded in half in my camping days, now it spreads across the bed when the weather starts cooling. The other is a very good quality woolen shawl of Indian/Pakistani origin & I was comfy. It was 15C (69F) when I went to bed & it's now 19C (66) we're only expecting 24C (75F)