couple quick thoughts/corrections
lots of guys sleep in hammocks in the winter even in northern Canada and cold places here ? see lots of reports in - temp all the time
just like the ground you need insulation to protect you from the cold and not just a space blanket spring and synthetic bag sure that could work but why ? use a pad
your bags insulation is crushed making it not insulate especially with down bags and sub freezing most use down bags unless you are humping a heavy large synthetic ? and then you are not ultra light anyway and just a space blanket won't cut it so most every single serious person I know uses a pad of some kind for insulation to the ground the hammocks are no different as far as needing insulation under you
a simple CCF pad can work in a hammock just like the ground even in summer insulation is a wise thing to have some dual layer hammocks have a place to slip a pad or in spring a space blanket in between to or just use a light UQ or a normal one and vent etc...
most tarps will keep the wind from whipping under neath you and if not you can get a simple bottom cover to keep the warmth in and wind out on the under quilt
or get a winter tarp setup with doors and its basically a tent to the ground all the way around
also the HH (Hennessy) are not integrated rain flys they remove and most all hammocks can be setup the same way and many have integrated bug nets but many have winter hammocks that do not have bug nets and many nice hammocks you can remove the bug net completely if you want since bugs are not out in sub freezing temps
the HH just setup that way and look integrated but they are not ? same way I have my kids hammocks setup tarp everything in snake skins
some hammocks like the DD is also a great hammock that is made especially to go to ground if need be and is loved by many for that reason
http://www.ddhammocks.com/product/dd_jungle_hammock
companies like
http://www.simplylightdesigns.com
http://www.warbonnetoutdoors.com
http://www.dream-hammock.com
for inflation these guys are like buying feathered friends or other high end gear super high quality
http://www.undergroundquilts.com
http://www.hammockgear.com
or many do things from poncho liners and do things themselves or again just use basic pads from CCF to thermarest or whatever and are happy
I got rid of my HH safari deluxe its well made etc. just found when I tried better hammocks they were more comfy for me anyway
the safari deluxe is rated to 350 lbs by the way
also seen quite a few in a pinch when no place to hang occurs use trekking poles on either end to hold up the hammock/tarp in a way to make it into a tent setup
ENO are great lounging we have 3 of them
but most will say they suck for camping sleeping once you try out others and have to agree also the ultralight guys you can get hammocks out of better materials that weigh less than a ENO by a huge amount !
I have a simple argon hammock 11 foot that weight nothing it seems 11 oz vs 19 for the eno DN also the comfort factor in better made hammocks is so so so so so much nicer than a ENO like anything once you get into it you realize how much is out there and how much better things are
some amsteel suspension and a silnylon tarp you are set and that is a not the lightest material either but equal or better than the ENO so more to compare to the ENO
same with there bug net which is twice as heavy as most well made ones
again been there done that and speak from experience I am learning quickly
learning about cinch bucklers or whoopies and other methods for hanging again like anything a whole other world that once you climb in you realize HH and Eno are great as intro products but there are many superior products that often are even less expensive and better you can truly get a superior product that will be better in every way over those two
again I love tents but love the hammocks more now that I got educated on them and by no way am I saying they are better for everyone but they are a option but there also is a ton of wrong info floating around just like any sport or thing to much wrong info keeps going around
so am not trying to be a jerk etc...
please don't take it that way was just trying to correct a few things that I also thought before
head over to
www.hammockforums.net plenty of winter trip reports etc...
Just remember Old Man Winter is coming and according to the farmers almanac this'uns gonna be a harsh one. Sleeping in a hammock with the wind rushing under you can and will make you think twice about sleeping in a hammock. For the summer, go with a hammock. Fall and winter I'd go with a tent and reflective space blanket. Just my three cents...
The Hennessy hammock comes fully integrated as one piece in that it has the hammock mosquito netting and rain fly all combined as one and is only rated to 250 lbs
Eno hammocks are bought in parts or separated so if camping in sunny weather you may not want the tarp attached or if he weather is cooler and there aren't any bugs a buggin you don't have to attach the netting. When it's all said and done the price for all the Eno accessories come to about the same price as the Hennessey and the Eno is rated to hold up to 400 lbs