I find this bag very useful for temperatures from about 20 F to 45 F. Â I use it with different combinations of jackets, caps and hoods to match weather conditions. Â I am a side sleeper and have used an elephants foot for mountaineering for almost 50 years. Â I like having a jacket hood that you can breathe out of when on my side. Â It works great when there is limited space but this 17oz. is my normal go to bag. Â My old elephants foot weighed 28 oz.
I use a 12 oz. quilt for 45F to 60F and a sleeping bag liner for 60F to about 72F. Â Below 20F I use a traditional sleeping bag providing there will be a place to lie down flat. Â I have added down pants and my heaviest parka for a Bivy in the Hybrid bag below 20F but 10F is my cold limit for this guy. Â It helps me keep my weight below the other guys without giving up comfort.