We have double airbed from Argos, we have a PVC backed picnic blanket after reading about that on here, then we have a thick blanket on top of the airbed, and some really snuggly warm sleeping bags zipped together. I take an extra blanket to put on top of us if we get cold, but the sleeping bags are excellent, soo comfy - only problem is when sun comes up in a morning and we roast!!
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.