Exped Ultra 3R

“>Exped's Ultra 3R has a temp rating if -5C Manufacturer ratings are not representative of optimal operating ranges. Unless you're talking about a cottage company that prides themselves on using comfort ratings and exceeding customer expectations, you're probably looking at the base survival rating of the pad, juiced up as high as Exped thinks they can get away with. This is an Ultralight sub, and my claims are ultimately about minimizing *overall sleep system weight*, not the weight of individual pieces. That's why I keep using the word "optimal". If you carry a sub-optimal pad and make up for it with a heavier quilt than you need, you're carrying more weight than necessary and probably sleeping colder than your would otherwise. Most backpackers underestimate the impact of the pad vs. the quilt.”