A few things I have learned about (Hennesey) hammocks:

1.   It is nice to be up off of the ground, and when set properly they are extremely comfortable.  Setting one up is as simple or simpler than a tent.  Like a new tent, or a tent you have not used for a while, by the third night it is up in no time.

2.  Always have the "foot" of the end hammock just slightly higher than the "head" end.  If the "head" end is higher, a nylon sleeping bag and it's occupant will constantly slide downhill toward the foot end.

3.  The extra or oversize tarp Magicpaddler recommends is invaluable, both for use as general camp fly / rain fly, and for creating the "burrito" wrap for cooler nights.  The standard flys which come with the Hennesy hammocks work very well in the rain, but are not large enough to cover anything more than the the hammock itself.  

4.  The "Snakeskins" from Hennesey are a worthwhile investment.   They make the packing and set up a clean, simple operation.  The resulting "snake" also can be shoved anywhere in a pack.

After 10 nights in the hammock, (a couple as magicpaddlers pictured burrito) those are some tips.  I'll be useing mine again next trip.

Quentin