>>1113214Ridgerest? It's a good value mat, bot in money as well as R-value, albeit bulky.
Nobody can tell you if wool blankets are good enough for a certain temperature, too much variables. That's why sleeping bags have EN ratings, these are taken in a controlled environment and be compared.
The decision to make a sleeping bag yourself, wehn you can buy one for $40 that goes down to 0F is really beyond me. Are you some kind of bushcraft larper?
