Anyone ever cut down a full length ridgerest pad to make it 3/4 length? Is the cut end prone to fraying if you do cut it down yourself?

Go crazy with that knife--it won't hurt your ridgerest at all. I hack apart my foam sleeping pad every time I get a new one.

Yeah,i cut my ridgerest down to 51" or so a few years ago and its still the same as when cut it.No problem at all.

Scissors. No problem, no fraying.

Cutting down a foam pad is something many people do, myself included.

I use a blue foam pad (cheap and light) currently and have cut down foam z-rests as well.

Save the foam pieces as they come in handy for winter camping (stove platform when surrounded by tin foil), pot cozies and other uses as well.