Thanks for your replies, I can't seem to find a patch repair kit, have rung Rays they had no idea what I was even talking about. I called All Seasons Canvas where they came from and they suggested getting some poly tarp stuff from my local tarpaulin shop (an off cut should do) and glue it on with Bostick shoe adhesive. So hopefully I can get the same type of stuff and it won't be too noticeable, although being the bed fly and up so high you not be able to see it anyway but I'm just concerned about it still being waterproof as we have never had issues with water leaking into the bed ends and I think the flies make a big difference. Will let you know how I go!