Unlimited $$$, go with HMC; otherwise...
After 1 year with the factory foam cushions (the boat was new), we wanted something comfortable. The problem with the factory cushions is that the foam compresses and takes a 'set' so you end up sleeping in a 'hole'.We looked at HMC. Outrageous price. Probably great quality, but not a good buy in my book. I asked them for a quote on just replacement hi resiliency foam, and they gave me a equally ludicrous quote. Obviously they don't want that type of business.I ended up purchasing replacement foam that has excellent support characteristics from Foam Sweet Foam. They are on the 'net and easy to find. Contact me and I will look up the exact type of foam that we used. They will ship you samples before you order the full size pieces. I spent 2 hours one evening cutting the new 4" thick foam with a $10 electric knife and inserting the foam nto the existing cushion covers. I used the old foam as a pattern. The fit was perfect, the comfort is wonderful, and the total cost for the aft cabin was about $350. This was 25% of what HMC wanted for their mattress, and this foam has a 15 year guarantee. The HMC mattress was 6" thick and would have meant that we would have lost 2" in overhead clearance as well as having to modify the backrest in our 40.5 that the factory cushions slip underneath.We are on our boat every weekend and for several weeks during the summer. We are not live-aboards. If we were, perhaps a $1500 mattress could be justified. After all, it's only 2-3 times what a great quality home mattress would cost!