Hi Folks,
I need to replace the matress in our double berth but I'm not sure what thickness/grade (soft, meduim or hard ) of foam would be suitable for liveaboard use. It's been sugested I buy a memory foam topper but I'm increasing the size of the original foam too so that's not an option on it's own.

I know it's a bit subjective but it would be helpful to know what everyone else finds comfy.

Cheers,

Crispin