I bought a ENO Double Nest at a yard sale last year for a few bucks. After I found out it would hold the portly I tried it and just love it. I have added the bug net and tarp and it works well.
I usually just use it in my roofed shelter at my river property after a night of cat fishing in the late spring and summer. I use it with the tarp when we do float trips.
Recently I tried it out in 30 degree weather with a military pad with shoulder wings added and I was comfortable with 30 deg. poly bag and poly long johns while on a early spring float. Beats the hell out of a tent.
I got to thinking that if you cliped 2 ENO D. Nests together with the pad and a poncho liner or evan a fleese blanket sandwiched between the two it might keep the pad from moving and provide more insulation.
I ordered another ENO D. Nest off of Ebay (New $44.65 shipped) to try it out myself. WTH you can't have too many hammocks anyway and the Ebay one matched the tarp in color. Has anyone else tried this?
I'll be right up front and state there is no way in the world I would drop hunderds of dollars on underquilts and I don't sew other than webbing/button repairs. Big $$$s and sewing are non-starters for me.
With that being said and the fact I will not be useing my hammocks for hiking makes me look for expediant ways to wring a bit more use/comfort from the hammock for what I use it for.