My biggest problem with pillows is that I need my neck to stay straight if I have any chance of sleeping. I always used my clothes bag, but in an effort to go lighter I decided to try different UL options. The Antigravity Flex air pillow, ($4.00) is not even worth the purchase. I figured Id try them out just to see and yea, the pillow deflated within 30 minutes out of the bag. I then decided to use my thermarest pillow, but Im modifying it. This pillow is not stiff enough to support my head. I cut it in half and safety pinned the half I was going to use and stuffed some of the prolite material from the other side to make it more firm and am sewing the seam back in to make it half the size, but more firm. Seems Ill cut about 4-5 ounces as well. I don't really want to spend money on a new pillow when I like my old one but want it to take up less space but be the answer to my main problem with sleeping on the trail.