OldScout wrote: If you go the liner route, I would suggest making a trial run at your house first. I am just claustrophobic enough that when I added a liner to the inside of my bag, I couldn't stand the closeness.

Boy, can I ever agree with that! I've squeezed through Nohoch Nah Chich and was not as claustrophobic as I get with a bag liner that gets all twisted up around me in my mummy bag. Add to that the cocoon effect of my jungle hammock and I have been known to get out and sleep on top of my sleeping bag on the ground. I've begun using my bag without a liner and hand wash it in a river if needed. Brum