Whilst my preference is to use my Intex 12V electric pump, sometimes you will have to resort to manpower to pump up your air mattress!
Most of my camping to-date has been at sites where I have been able to have my car at hand to power my little electric pump for inflating my mattress. On a recent trip this was not going to be possible, so I bought an Intex Double Quick III Hi-Output Air Pump to do the job.
The good news is, it really is efficient and easy, and you will be enjoying the comfort of your mattress in no time at all. It can also be used in reverse to deflate the mattress quickly for stowing, and comes with a set of 4 different nozzle sizes.
R99.00 @ Cape Union Mart

