Originally Posted by
Lake_Tom
It depends on whether you "sleep cold" or "sleep warm". I sleep cold, so I have to use a warmer sleeping bag.
Having said that, you can wear extra clothes to bed. If it's cold, wear some socks; they have to be clean socks though, the ones you wore all day are not dry enough. I wear a Headsweats (R) light beanie, it really does keep me warm. I sometimes wear a polypropylene balaclava. Backpackers carry down sleeping hats for cold weather. They are tiny and light compared to other garments.
I am a big advocate of polyester fiber-filled clothes instead of fleece: way better warmth-to-weight ratio than polyester fleece. If you have a way cold night, sleep in your fiber-filled sweater and you will be warm and happy.
Right, you can't forget that the body loses most of its heat through the top of the head. In winter I turn the heat down to ~50 degrees in the house and wear a fleece hat. No more blankets on the bed than the rest of the year and sometimes I'll wake up and toss off blankets in the middle of the night. It's the hat (I have thin hair). Of course, I do live alone.