this is a good starter hammock skeeter beeter pro
although it does not have a double layer like you mentioned, it is still workable. I'm guessing you want double layer for pad usage?
For a tarp I recommend the Etowah 8 X 10
from here. It's a little on the heavy side, but it has tabs instead of grommets and they have it in CAMO and it is super cheap they have great customer service