There are a lot of potential pitfalls with this, the first one I can think of be...

w1ntermute on Nov 30, 2012 | parent | context | favorite | on: Cuddle Mattress

There are a lot of potential pitfalls with this, the first one I can think of being having sex. I wouldn't want to have slits in the mattress that my arms or legs could get caught in when having sex.

seiji on Nov 30, 2012 [–]

Maybe you're doing it wrong?