Did you have foam mattresses between you and the camp beds? I'm up to Scotland tomorrow and was planning on beds and foam sleep mats.... But worried about the cold
Got to say I've never had any problem with the cold when I've slept on a camp bed and the coldest it went down to was about -8 or -9deg with me under a tarp, frost on the bivi bag in the morning.
I just make sure I have plenty of insulation underneath me as well as on top.