I read the Apollo Series spacecrafts were practically inflatable! IKEA should carry something you can blow up besides their cool shopping bags.
Mattress beds are fine
But bugs build their own little version of New York City in them, the size you get is all you get, and short people can't move them around easily.
Water beds were a great idea at one time 
but when you discover something else is living in your bed because you forgot to condition the water, they lose attraction.
Leaks are always fun to wake up to, too.
Air beds are vesatile.
They can be shrunken, enlarged, carried under your arm, be used in the back of a truck, and used as a floatation device.
And dust mites can only pitch little tents on them.
For paranoid folks out there, an air bed could save your life.
If you are at the top of a smoldering building, and smoke starts billowing under the door, you have your own separate oxygen supply. I'd bet you could even slice one up and make a parachute out of it, but, that would be something I'd leave to Myth Busters to check out.
And for the college dorm people out there, they're perfect.
Once your through with college, you can practically stick your bed in a scrapbook.
So There..pltpltplt!!! bwahahaha