Don't feel guilty hun, its your holiday too and I certainly wouldn't be having fun if I was handwashing nappies and worrying about getting the stink out of them.
When we use dispos (which is overnight quite a lot at the moment
) we use Tesco essentials (£3 odd a pack) and Imogen is a heavy wetter. Even if she has a 6oz bottle at bedtime and a 6oz bottle in the night they are fine and I don't find them sweaty at all. Much better than huggies and pampers in my (limited) dispo experience.
Enjoy your holiday hun, I can't wait for mine. Am undecided about cloth or not
we have a washer etc BUT worried about luggage allowance and spending my holiday washing!! Might take a bit of both.