Hi Alison.

Usually the mattresses that accompany electric beds will either be latex or foam, or a combination of both.

The reason for this is that there has to be an element of bend in the mattress to form with the movement of the electric bed.

There are pocket sprung mattresses that have had the perimeter rod edge removed in order for it to move with the mechanics of the bed but unfortunately;y these are few and far between.

I would do a google search to find a specialist retailer.

We are not in a position to make any kind of recommendations.

KInd Regards Gary