Hi Lisa,

Thank you for your enquiry.

Mattress toppers are used primarily to provide an extra comfort layer, to soften the feel of a mattress and cannot be used to firm one up. If you need to make your current mattress feel firmer, we would suggest placing some board on top of the base. If this doesn't work, you may be left with no alternative, but to buy a new mattress.

We trust that this helps, but if you require any further advice or guidance, please call our office on 0161 437 4419.

Kind Regards.