That kind of usage in the uk and europe typically requires a bag that is rated down to minus-something-less-than-five. E.g. alpkit pipedream 400, which is superb, and suberb value. Rab lightweight bags are superb (I think the quantum 400 is possibly more what you might need), have heard good thins about phd too. Can't really go wrong with a quality manufacturer and decent down. Except if you anticipate being wet, in which case (and this is the only case) synthetic wins.
I have a german-made down bag rated to -5, been going strong and used quite heavily for almost 8 years now, with occasional cleaning, still got life in it. It's been used for all manner of trips, including a couple of nights on glaciers in the alps over 3500m. (Fully rugged up mind!). Perfect for virtually all seasons in the uk, except cold winter nights in the hills.
Also worth putting a shout out for the Rab Survival Zone bivvy bag:
Superb and very lightweight, and perfect for cycling trips too, cos it's a fraction of the weight/space/cost of a tent, and much lighter and more compact that a fully covered bivvy bag, which I've used too. The rab has been with me in some quite minging weather and done the job admirably.
That kind of usage in the uk and europe typically requires a bag that is rated down to minus-something-less-than-five. E.g. alpkit pipedream 400, which is superb, and suberb value. Rab lightweight bags are superb (I think the quantum 400 is possibly more what you might need), have heard good thins about phd too. Can't really go wrong with a quality manufacturer and decent down. Except if you anticipate being wet, in which case (and this is the only case) synthetic wins.
I have a german-made down bag rated to -5, been going strong and used quite heavily for almost 8 years now, with occasional cleaning, still got life in it. It's been used for all manner of trips, including a couple of nights on glaciers in the alps over 3500m. (Fully rugged up mind!). Perfect for virtually all seasons in the uk, except cold winter nights in the hills.
Also worth putting a shout out for the Rab Survival Zone bivvy bag:
http://www.needlesports.com/acatalog/Mail_Order_Bivi_50.html
Superb and very lightweight, and perfect for cycling trips too, cos it's a fraction of the weight/space/cost of a tent, and much lighter and more compact that a fully covered bivvy bag, which I've used too. The rab has been with me in some quite minging weather and done the job admirably.