I bought 2 of these mats to use for a Girl Scout sleep over at the aquarium.  The girls were sleeping on hard cement floors an needed some padding.  I inflated with a pump ( you need one with a skinny nozzle tip) and it did take a few minutes to inflate them, but they held air and were comfortable.  I would recommend having a separate pillow as this is pretty much just flat.  The mat held air all night and was pretty comfy.