when you say Water proof do you mean for the hammock?
if so it may not be the best idea ..you want the hamock to breathe ..
if not you will be waking up in a puddle of your own sweat
just some food for thought
Some people have found a waterproof non breathable hammcok to be a bit sweaty, but I can only speak from personal experience-I've spent many nights in waterproof non-breathable hammock, and have not had sweat problem. It seems to suit some people better than others, thats all I can put it down to. The waterproofing does add weight though.