what’s the lowest temperatures you’ve taken the ultra 3r pad and been comfortable (i.e. not feeling the cold ground)? exped seems say it’s limit is down to 20f with it’s 2.9 r-value which seems a bit optimistic. I’ve used a zlite with it’s 2.6 r-value and found just above freezing was it’s limit for me.
just wanted to survey personal experiences. I’ll likely get the 5r instead to be conservative but the weight of the 3r is tempting and might be appropriate for my 3 season setup with a conservatively rated 30 degree bag
