I cant remember what dc1 wore at that age. We have 2 weeks planned, Annecy and Dordogne. Hell be sleeping in a Nomad (or in with us ;) ) and we have a selection of vests, normal sleepsuits, fleecy sleepsuits and varying togs of grobag type sleeping bags, but I want to limit what we take a bit. Just not sure what the temps will be like at night? Weve camped once with him in the UK earlier this month and he was in a fleecy sleepsuit and 2.5tog sleeping bag, but I think France in August may be somewhat hotter than a windy Yorkshire in early July well I hope so 