Going camping for first time with dc aged 1 and 5, dh and in-laws. We have booked caravan w/c 3 Aug right by Calais, have checked night time temps which are generally around 15*C. Stupid question alert, but will it feel cold in the caravan? Just wondering how many blankets and/or grobag to take, think I've been lulled into a false sense of weather security with all this sunshine we've had and the reality will be much cooler. We have booked linen packs but not sure what is included for travel cot. Also, would you take Welles? I think yes but dh thinks no, not much room in car so don't want to overpack.