memory foam-partly boaty

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catalac08

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thinking of a memory foam mattress to improve comfort on boat - they seem pretty good according to some but one thought occurs to me. Is this type of foam succeptable to "damp sag" as is conventional foam and if so what is the expected life of these rather expensive layers of foam? Is life expectancy better off boat? Does a muslin cover help protect against damp sag?

No experience of this product so any info welcomed e.g are there any imitation makes about or anything to beware of?
 
I bought a mattress topper from Raskelf, having asked people's advice on here. It's very good and you roll it up every day. I bought the thinnest they do because my feet go in a trotter box, but it's still a big help in mattress comfort - stops those pressure points on the hips.
 
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thinking of a memory foam mattress to improve comfort on boat - they seem pretty good according to some but one thought occurs to me. Is this type of foam succeptable to "damp sag" as is conventional foam and if so what is the expected life of these rather expensive layers of foam? Is life expectancy better off boat? Does a muslin cover help protect against damp sag?



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Can you kindly explain what is "damp sag". Sounds rather unpleasant!

We are looking for a better upholstery foam than currently fitted, so any advice very welcome.
 
We've had two inch memory foam toppers on the main bunks for about three years now. I don't know what "damp sag" is, but if they have fallen victim to it, we haven't noticed. Blissfully comfortable.

We also have the one-inch roll-up toppers from Rakself for the seaberths when required. They don't spend so much time on the boat, but seem perfectly healthy to me.

I wouldn't hesitate. The only problem is not wanting to get out of the bunks in the morning because they are so comfortable.
 
Hi, I bought some memory-form off-cuts/seconds off ebay three years ago; they were a standard thickness (I think 1 or 2") and cost me £1 each !; they were quite bulky but the chap combined the postage which was £15.

I then got my mum to make the covers; and I now have two lovely mattresses for my two forward bunks. I had my mum sew some ribbon bows into each end so I can roll them up to stow out the way or for taking off the boat.

They have been on the boat two summers and I cannopt recommend them highly enough; REALLY comfortable. One usually got a little damp from a drip leak but it never seemed to hold the damp, get mildrew or musty. On a sunny day I would use the ribbon bows to tie them to the boom/mast and they quickly dry out.

Not sure if they are still sold on ebay but worth checking. I think they were seconds because they were not a consistent colour which hardly matters fo the boat when covered.

I had plenty of left-overs which is ggreat for stowning things away like the oatboard or a cockpit cushion which I don't use covered but simply as a bit of foam.

Cheers
 
for benefit of leighb
when commissioning new cabin cushions I asked why when the berth cushions were going to be covered by uphostery grade pvc, it was necessary to have muslin type inner covers on the foam pieces. The explanation from the supplier (Sherlock Foams - yes seriously in Stockport) was that the layer of muslim reduced "damp sag" in the foam. Damp sag being a type of deterioration of the foam due to take up of air/body born moisture and resulting in the foam losing some of its resilience and sringiness. I think that this happens inevitably but the layer of fine material delays this process.
 
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