I have not thought about selling them , but I do know of a woman who does sell them for about $12. a pair. I got the idea from her and I don't want ot infringe on her copy right. So I'm not going ot sell them, but will be glad to give some to those who use a cpap. I can usually look at a picture and make one just like it. So far I'm the only one in my family who uses a cpap. They are so easy to make, Just measure the straps on your cpap mask and then have at it. I used fleece and it is washable and you'll also want something that does't shrink. Until I know for sure I will be hand washing these. I found a small hunk of fleece at the Goodwill for 99 cents so I'll be making extras so I have some thing to change off and on when these are washed. Doesn't matter what type of a mask you have, just measure the straps and your in business. Good luck, Huggies, Fay