I'm a frequent ground dweller (when I need/want to go as light as possible by sharing shelter and quilt with my wife), who always uses a quilt. Even before I knew about quilts, I preferred to drape the open sleeping bag over me like a quilt. I usually use a 3/4 length foam pad when on the ground.
If it's hot out, the foam does indeed get sweaty wherever my boddy presses firmly against it. Any place slightly raised stays drier.
I think (many) hammockers get more of this when using pads because of the ventiallation-reducing wrap of the non-breathable pad. There's more contact spots, therfore more places lacking ventillation, therefore more 'wet' spots.
Not unlike the HHSS. For some, it has presented an unsolvable problem of condensation issues, cold or both. They tried every trick recommended to them, but still a no go. Some others of us have used it on and off for years with no problems at all, with it easily meeting "specs" or TH's experiences with it posted at HH. So why such a difference? I have no idea. But I don't doubt those who reported miserable results, while I know it has always worked for me.
But if you can use pads in a hammock happily, you have to be a happy camper! Super low cost, very durable, wind and water proof, no learning curve with suspensions and such- just lay down on it- and you are good to go for ground if such a thing happens.
Apparently, signature that I used from 2006 no longer tolerated so now deleted.