Hi Ian,

All of our products can be used on a bedstead and if that bedstead has a slatted base, we would advise placing some form of barrier, usually in the form of thin (3-5mm) MDF sheeting over the slats to provide the mattress with a uniform surface upon which to sit and prevent ridging as a result of the mattress depressing in to the gaps.

This will make any mattress feel slightly firmer. I trust that this helps.

Kind Regards Gary