I am normally a devotee of down bags but these can be a bit hard to keep dry on an extended wet trip so I want to add a synthetic bag to my equipment. We have some old synthetic bags but the loft has long gone through age and inappropriate storage (I don't make that mistake these days) and they can best now be described as one season...
I am looking for a three season bag with the rating down to about freezing to -5c. Needs to be back-packable but will mostly be carried in a canoe. I sleep on an Exped down mat so that boosts the rating, but on the other hand I am quite a cold sleeper.
The Mountain Equipment and Snugpak ranges look good. I'm not looking for a military-style bag.
Many thanks in advance for any views. I tried search and couldn't see an obvious answer.