I had this problem for years with the addition of my husband stealing blankets in the night, which of course he couldn't help in his sleep. He didn't like sleeping with anything electric in the bed either so my solution was to use two single duvet's during winter with a large quilt over top that covers us both. I use the duvet covers as sheets and turn them over to use other side and wash regularly. It's like having a cacoon. It is great in middle of winter and I switch back to sheets and blankets with quilts on top in warmer months. Not for everyone but awesome for us.