In reply to TobyA:
I'm looking for something that will give me comfort down to about 5 degrees. I have a 3/4 season bag that will get used if its going to be colder.
My main concern is it being light (ideally not much over 1KG) and small when in the stuff sack so it doesn't take up to much room in my bag.
Most of the time I will be in a tent, bothy or shelter of some sort so think the 5 degree rating should be ok.
Ben