I have an old cloth-based sleeping bag that is bulky and not for cold weather.  I’m concerned about the space vs weight. I normally don’t camp and don’t want to spend money on a new sleeping bag.  So, I’m considering bringing a light blanket and sheet.  BTW…I’m using a charter and they are hauling my gear to my tent so weight is not as much a factor as if I was biking the  gear. I’n other words I don’t need an ultra-light bag.  For those with experience, I would like your thoughts on using a light blanket and sheet vs a bag.