My partner fidgets pretty badly which keeps us both awake, yet ideally we'd like to share the same bed. Is there a way a zip & link could be joined just from below, so as to minimise us feeling each others movements? My partner is 6'4" and weighs 12.5 stone. I am 5'8" and weight 9.4 stone. We are both side sleepers (I do also sleep on my back) We currently have a Sealy Singapore posturepedic (no turn) super king mattress. I think it's a medium/firm. This suits us fine but it's going to go in the spare room so we can hopefully sleep in the same bed! Any advice on the right mattress from you guys would be very much welcomed please? The mattress will be going on a sprung slatted base ottoman bed. I'm guesing this won't be too bad with a zip link since they are already separated in the middle? I haven't measured the gap between the slats yet.