The specs on the Exped REM compelled us to include this model in our 2017 review. For a hybrid pillow, it's lightweight and features a great valve system for easy inflating and deflating. Upon receiving the pillow, we were also impressed with its maximum thickness, which was more significant than any other model reviewed. Its comfort, though, is only average, and despite its low weight, it takes up considerable room in a pack.
We like the REM, but the performance of other models nudged this one from the winner's circle. The other hybrid pillow reviewed, the Nemo Fillo, is more comfortable and packs smaller, although it weighs over three ounces more. For less weight and a slight drop in comfort, check out the Sea to Summit Aeros, our Top Pick for Backpacking.