Flannel Headband for a Frugal Sleep Mask

My partner reads late at night, and I like to go to sleep right away. We have fixed this problem with the light keeping me awake, by me wearing a sleep mask.

However, I didn't go out and spend 7-20 dollars on one. I just grabbed my flannel ear muffs headband and wear it around my eyes. I get my darkness and snooze soundly!