Yamatomichi UL 100cm Sleep Pad 15+Created as an ultralight sleep pad that doesnt sacrifice warmth and durability, Yamatomichis UL Sleep Pad 15+ is for those who like to travel light and in (relative) comfort. Its no mattress by any means, but thanks to that thick XLPE foam, theres a lot more cushion in it than youd expect for something that weighs just 113g. The short shape means that it works as an ultralight sleep pad, a handy cushion or a backpack back pad.