I agree, it's dishtowel fabric. You can purchase it in yardage. Someone really liked it and was going to make a lot of towels!
Grandson going to Detroit Childrens? My granddaughter is a patient there periodically for her throat. She has a paralyzed vocal cord from having a trach. She is a triplet, was a one pound preemie. Now 10 yrs. old!
Good luck to him, hope he sails through the surgery. Hugs to your special boy and his grandma!