So I wandered out to a thrift this afternoon and found a sleeping bag. It’s cool weather 40° light weight mummybag by ozark trail. I could not resist for large sum of $2.99. It has been used but used lightly and I want to wash it but no washing/drying instruction to be found. It’s not a big bulky one that I have experience with. So how do I care for this affordable slender surprise?