I finally found a five foot self-inflatable sleeping pad (16.9 oz)
Wow, I finally found one -- the four footers were always too short and the six footers were overkill. Look at their large 2.3 oz pillow that snaps to the pad and won't flip around. I got that too. It will replace my 1.9 oz pillow case. Also, note the non-slip surface so your sleeping bag reportedly will not slip around it.
Furthermore this pad is about $16 cheaper than thermarest too (the six foot prolite 3 pad) which weighs 3.1 ounces more. (plus the Montbell comes with stuff sack and repair kit for that reduced price)
ps - does anyone have any of their pads (4,5,6 foot length) - how nonslip are they? also, anyone has their pillow, how comfortable is it?