I know you’re thinking “hello, pull the blankets up” but when you breath under blankets it gives you a headache from rebreathing all that carbon dioxide. This way you’re snug and warm without being entombed.
This one is loom knitted using a single strand of soft wool yarn in a neutral light tan. For outdoor use, this would be way too thin to do you much good. But indoors, it’s light-weight, and snug enough to stay put with out all the bulkiness. Plus, it’s stretchy enough that you can pull the roll brim down over your face when those sinuses kick in and need a little more warmth!