AeroBed For Kids are not only great fun they are great for camping, in hotel rooms while vacationing and just as extra bed space for guests.
They inflate and deflate quickly and fold compactly for storage when not in use.
Your kids will love sleeping on them and may not want to go back to their regular bed. Because of this they also make a good transition bed from crib to "big bed".
If you need a temporary bed for adults then you will probably prefer the Aero Bed Raised. It will make getting up and down off of it easier.
Another option is to use air mattress frames under air mattress beds to give a more comfortable height.
These are good inexpensive solutions for various bedding needs. Check them out at: http://www.aerobed-forkids.com