Hiya,
The title says it all really!! We camped for the first time last summer, but only in the main summer holidays, we'd love to go somewhere for the whole week in the May half term, probably Norfolk kind of area and wondered whether we would be freezing at night!! We all have 3 season sleeping bags (though I was still cold in August, yes I am a wimp!)
Any advice from seasoned campers gratefully received. 