Hi Ryan and/or John Can you help me?

Can I buy a single (3'x 6'6") mattress from you to replace a single 6ft 6inch mattress on my half of our Superkingsize bed?. My husband bought us a Staples "Guinevere" zip and link superkingsize bed (but without any zips!!!!!!) in Januray this year!

It was available in Medium or Firm tension. He bought the medium but it is far far too firm for me!!!

He'ss 13 stone and I am 10 stone. I therefore feel I need a softer mattress but it would have to be 12" deep to match his half (which he is perfectly happy with). I intend to unify the top by using a mattress topper possibly latex??

Can you tell me if you can provide a mattress for me and if so at what cost?

The base is also new and is a sprung edge divan (in two halves) with a firm edge Many Thanks. Maura .