I've got a cute free eye mask sewing pattern for your guys that you can download from below, at end of supplies list,  then watch the video to go along with it. The sleepy time eye mask pattern uses soft, plush minky fabric as it's backing and comfortable foldover elastic. I LOVE the minky because it's so soft and comforting and as an added bonus, it also acts as a sort of light blocker because it's so thick and plush. The video can be found on my You Tube Channel, A Design By Angie, HERE. I filmed it as an ASMR video with no music or talking because I actually have started to enjoy listening to all those packaging videos while I work. The sounds just kind of put me in the zone. Or, if you prefer, just turn down the volume and watch. It has clear written instructions the whole way through.
I also have a full set with a Kitty cat shaped sleep eye mask, a cute mini drawstring bag to hold your mask as well as a copy of the free eye mask. It has over 20 full color photos, printable tutorial and sewing patterns you can print for the drawstring bag, kitty eye mask, and regular eye mask. You can snag the deluxe pattern set HERE at my Etsy Store.