Base layers if it's really cold, less in warmer temperatures but that's between me and my sleeping bag ..... ATB Shug.
Border Bushcrafters
Isn't it nice when someone says "that's a great piece of kit, where did you buy that", then you can modestly reply "you can't buy it, I made it myself". The moral is, it's amazing what you can achieve if you put your mind to it.
"No better burden can a man carry on the road, than a store of common sense." - Hávamál: 10
http://midgefodderbushcraft.blogspot.co.uk
Yep base layers, but as already said they must be perfectly dry and just for sleeping in
Campfires are best shared with friends.
Yeah I carry a spare set of base layers in a drybag for sleeping. I can't say as I like sleeping in them, but carrying, for example, a 2 season bag with the optional baselayers is more flexible and less bulky than a 3 season bag.