Hi Jane,

We do sell zip and link mattresses in the following sizes.

• Extra king ziplink (6’0 x 6’3) – Comprising of 2 x 3’0″ x 6’3″ beds
• Super king ziplink (6’0 x 6’6) – Comprising of 2 x 3’0 x 6’6″ beds

We have a detailed article on zip and links, with their sizes, here.
We don't offer the fusion solid core latex in zip and link sizes as solid core latex doesn't lend itself to this construction method.  It's incredibly heavy and by its very malleable nature doesn't suit a zip and link configuration.

We do however offer our Origins 1500 Latex model in a zip and link. It's a pocket sprung latex topped mattress more details can be found on the listing.

With slatted bases we always advise you board over them to prevent the mattress dipping between the slats.  There is more on that here.

If you need more assistance please call the office for more tailored help.

Kind Regards Gary