Literally setting a $5 bill on fire would help you sleep better at night.
Spend the extra six bucks on a nice cotton sleep mask. The nose contour of this thing is SHARP and it literally smells flammable. The tag does not say what it's made of and the strap adjustment is about 1inch long, so not great if you're an adult with hair. The only reason I'm not returning it to get my $4 back is because it would cost me that much in gas to get to my nearest Amazon return center kiosk.
Rating: 1 stars