Under mattress dampness

  • Thread starter Thread starter KAM
  • Start date Start date
I put it on top of the foam but under the outer cover. It seems to work for me. Cheap enough to experiment with. I had tried a bin liner but it was a bit crinkly.
 
Although we do get condensation on colder nights on the aluminum hatch frame and sometimes on GRP a this has never been an issue under the bed as far as I know.
No condensation issue at all if the boat is unoccupied.
The more ventilation that is provided when sleeping on the boat the better.
Sleeping on a waterproof sheet doesn't sound very comfortable.
 
My boat stays bone dry all winter too. And get very little condensation when sleeping. I suspect some upholstery fabrics have a rubberized backing which maybe acts as a moisture barrier hence it's not a problem for some. The stuff on my cushions was wearing and I suspect any moisture barrier properties had deteriorated giving an impression things were getting damper. The IKEA stuff is rather strange looking it's cheap, comfortable and works in our situation. There's an added advantage that any drips don't result in the cushions becoming salty over time.
 
My boat stays bone dry all winter too. And get very little condensation when sleeping. I suspect some upholstery fabrics have a rubberized backing which maybe acts as a moisture barrier hence it's not a problem for some. The stuff on my cushions was wearing and I suspect any moisture barrier properties had deteriorated giving an impression things were getting damper. The IKEA stuff is rather strange looking it's cheap, comfortable and works in our situation. There's an added advantage that any drips don't result in the cushions becoming salty over time.

My "V" berth and mid ship berths have a zippered vinyl covering but I still think I could get condensation.

The quarter berth and aft cabin double berth are only cloth covered so I'll have to install some sort of slat system
 
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