I have a space heater from Amazon. It cost about $30 I think? I’ll link it here for you, it heats my entire room in minutes. It shuts off after 6 hours I believe so if you want to leave it on as you sleep it’s fine. If I wake up early enough I’ll turn it back on and get into bed! Then when I get from under my blankets my room is toasty! I think this would work great for you. Space Heater