Earleneang

Eliminate the old waterbed mattress and purchase a blow-up mattress to fit into the waterbed frame.
The merely way to see is to personally try the bed mattress. Naturally not everybody keeps these plastics and if this is the case there are options. Latex bed mattress have an unique feel, likewise.

Buying a mattress actually comes down to one important thing: your opinion of what is comfy.
You can't attempt the bed out, however you can usually get a good cost. A one year warranty states to me they are not to confident the mattress will hold up under regular circumstances.