Hi @EthanAdams, thanks for reaching out!
I am a hot sleeper as well and have spent many a night seeking a balanced sleep experience. Temperature ratings on a sleeping bag are a nice base line to work off of, but don't feel restricted by the numbers. If it's a hot night I'll sleep with the bag unzipped or laid open to lose some of that unwanted heat. The cotton bedsheet may sound tempting, but if the sheet gets wet from the weather or excess sweat overnight it will be a while before the sheet dries out. If that happens, you'll be without functional covering for the night! If you are looking to minimize your weight, have you considered going with a hammock sleep system? Hammock systems tend to sleep cooler as the air circulating underneath draws heat away from the body. Hope this was helpful!