Upgrading my sleeping bag

[Northernpiker]

I was using a north face cats meow and got cold at 30 degrees, my choices are try a sea to summit reactor in existing bag or upgrade bag. Has anyone tried the reactor? Or, looking at a Big Agnes Mystic Sl, no insulation on the under side of bag, would use this with neoair xlite. Any thoughts? I'm open to other bags also, the Mstic is large and lite. How do the bags with no underside insulation rate with users?

 

[AXEL]

I had Feathered Friends make me an UL bag for alpine hunting in 1989, it was sans bottom and I used it for several years. I went back to regular type bags then and eventually gave the FF to a friend.

For ME, others may well differ and after owning/using many highend bags plus using BCFS issue bags and a few others, I prefer the BEST down bags for most uses and in the USA, Western Mountaineering is currently at the pinnacle of quality/utility.

For most hunting uses, the WM Badger, "microfiber" is as sound a choice as one can make, IMO.