James, same as everything in the carping world, it comes down to your budget!

IMO, the best bag bar none is the Nash Wideboy Forstbite bag, will keep you warm in the coldest of fishing conditions, but at (i think) £180, its quite expensive, a mid range one to look at is the Aqua Duvet set, you get a big ol bag and a fleece cover for around £100..

If your budget is a bit tighter then the Big Snooze is a decent bag but the zips have a tendency to give way easily, £30 on a fleece cover will improve any bag immensely though fella. So maybe have a look at getting one of them to go over your fox bag.??

Ian

find yourself a local army surplus shop and get a second hand one . should cost you about £30 but well worth it.check this link out to see what thay are like http://cgi.ebay.co.uk/Camping-Sleeping-Bag-ex-army-Comp-Sac-Large-/300456680792?pt=UK_SportingGoods_SleepingBags_SM&hash=item45f49d1d58

i too match fish carp fish now then i got meself the peachskin and thermal cover trakker around 120 mark but shop about ya won t get much better buddy!
i paired it up with new bedchair sleepezzi prestiage ported 8 leg chair dream to sleep on get upset tho when get run,lol
always had trakker ones always been good!
cheers james

If you can find one, the warmest bag you will find is the old Nash Frostbite 5. Has a removable liner that will keep you very warm in the coldest temperatures. I won’t part with mine even though I have one of the newer Frostbite All-Seasons as well. The Frostbite All-Season is a warm bag also, but when it comes down to the really cold temps that we can get over Winter, the Frostbite 5 comes out (always in the car in winter just in case).