It is too cold to sleep. Tell me about it.

It's the season of freezing hands and feet again. My feet are cold after a night's sleep, which means I can't sleep! It's too cold. It is winter all night. Get up at midnight and turn on the air conditioner. Otherwise it's too cold to sleep. It's still too cold to sleep with the air conditioner on, but I don't want to move when I think about it. Winter is really annoying.