Been messing about with pillow options last few weeks (as my Filo pillow weighs a lot) and have made a wee break though....while I was looking for a memory foam mattress I stumbled on a site that will cut memory foam to any shape and size, so had a wee thought that maybe I could somehow use some of it to aid my creaking soon to be 50 year old bones. I bought a piece 90cmx90cmx0.5cm from thefoamshop.co.uk for all of about £3 and had the idea that I would somehow be able to cut some off and take with me. What I ended up doing was cut a piece three times the size of my off cut sleeping mat that I use as a back support with my KS Ultralight and do a tri fold and place behind the back support. When its loaded up it is extremely comfy and you wouldn't know that it was there, weighs in at 96g. When its bed time I take my Exped pillow and put it inside my buff along with the folded memory foam and good night everyone zzzzzz I also found one of these on Ebay http://www.ebay.co.uk/itm/Flocking-...var=501927163901&_trksid=p2057872.m2749.l2649 Very comfy and weighs all of 90g...takes an age to blow up though...you'll need a right pair of lung on ya!!!! Its just the right height with a fold of memory foam on top for me.