Pet Beds

I have the sweetest little Boston Terrier named Holly. I have been thinking about pet beds because it gets so cold here in the winter. She has been sleeping on an old pillow on the floor up until now. That is okay for summertime but we turn down the heat at night and wouldn't a bed with a warmer be just perfect for her? Also, a folding one would be great for when we go on trips or it can just be moved from room to room at home. The prices are reasonable too.