Sheila, I use just a lightweight cotton comforter on my bed instead of a blanket and bedspread. Just a bottom sheet, also, so that makes making my bed really easy.
However, sometimes I am cold at night, depending on where I am, so I have a lightweight down throw I keep folded on my bed, towards the side. When I get cold, I pull it over on top of me. Because it is a throw, it is the right size to cover me up but is still very lightweight and easy to toss off again if I get too hot. And it really, really keeps me warm because it is down. Cost is only $32 from Amazon and it comes in several colors--https://www.amazon.com/gp/product/B01G9M9JHW/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
This might be easier for you and it works without needing to plug it in. Also, if you are somewhere for a while where it is warm at night, it rolls up into a bundle about 14" by 4" --very small and easy to store.