I have just (well yesterday) recieved 5 metres of no-see-um netting from Pennine Outdoors - part number - P1H - No-See-Um Netting.
Excellent stuff though at over £5 a metre quite expensive.
Much finer mesh that what Point North sell (hence the price I suppose).
It will be used to make mossie nets for mine and my son's Thai Hammocks (thanks Leon-1 for the eBay tip, good bargain hammocks).
My idea is to cut a piece a little larger than the hammock, sew three edges and add velco fitting to the fourth edge.
Add a couple of loops or rings so I can tie it up to the ridge line and that should be it.
I'll do the first and modify for the second hammock any changes needed.
I may also put hoop tubes on one of them and see if that's a better way of keeping the net off the sleeper.
Rgds