I decided to go with my first non-self inflating mattress and did not want to blow it up by mouth, so I checked out the options and found this cool little device. It actually does inflate my Exped quickly and takes up very little room. I have not gotten it to work with a Therm-a-rest yet, but it might work if I widen the inside hole some.
I definitely recommend this if you have the Exped.
This review was written in the old system and had content requirements that are different than reviews written today.