V-bert mattress material

[breakingwind]

Any advise on what type of foam, rubber or any other material to use in mattress material for my V Berth

[severt]

Cushion foam is graded by foam density. For a tri-berth which is used often in port or at anchor, high density foam should be used. You should ask for live-aboard density to ensure comfort and back support in the long term. It costs slightly more, perhaps no more than 10%. The other classes are recreational and commercial use.