This is my 1st post. Just got an army issue artic sleeping bag and bergin to complete my bush craft kit. Tested the bag out in my hammock last night and I definitively need an underquilt. The shop I got the gear from was genuine army Surplus in Darlington. Here's the link: http://www.genuinearmysurplus.co.uk/. I would definitely recommend it for anyone living in the north east. Plus I got £30 knocked off. Going back there next month as they sell Granfors Bruks axes.