I used the BBH wool covers and hand knitted longies for bed times. You will feel a bit of dampness because the wool allows the wetness to be evaporated off. It's kind of weird in a way that the pj's might feel damp but then when you take them off, the cover will feel cold but it is dry.

Also if you can get some of the sheepish grins products spray lanolin and lanilin wool wash it will make life so much easier