Hello all. DD is off for 3 day camping expedition for Duke of Edinburgh over Easter. Weather is rather cold at the moment (state the obvious!). The sleeping bag we have is very lightweight (1.1kg) but don't think it will be anywhere near warm enough (+12 comfort; +8 limit; -5 extreme). So we need a new one - needs to be light, compact, warm and hopefully not too costly! Any recommendations please? Thanks :)