Last Year I made a Diy Hammock underliner for my Hennesey Hyper Lite. I used shrink storm door plastic , elastic and sewed edge binding all the way around. My sister gave me a bunch of ripstop so I cut on out today. I havent sewed it yet ,but will be done soon. This idea came from Henneseys four season insulation system. There eggcrate liner pad is available for 29.00 Not bad, underliner is 100.00 and change. I am trying to fine lightweight open cell eggcrate foam? Guess what looks to be cheaper to just bye liner pad from them. I know my big screen tv was packed with it years ago. If anyone has some around let me know. I thought mabe a chepo eggcrate mattress pad may do! Nope to heavy and doesnt compress to pack well enough. I would love to have a down underquilt, but not in the budget right now. I will post a pic or two of my finished underliner when complete! May just have to bye Henneseys Pad, but the DIY in me says keep looking? I must be nuts! If I was smart I would have bought a super shelter system when they were on sale last year for 98.00 No I gotta make one or two? LOL, sometimes we are better off biteing the bullet and drop the cash!
I would love to have a down underquilt, but not in the budget right now.
What about cutting up and sewing one half of a cheaper synthetic sleeping bag for an underquilt?
My normal "underquilt" is an integral dynamics silponcho - it is essentially a 5x8 foot tarp, cut like a poncho, with stretchy shockcord on the bottom. this means I can attach it to the hammock and it will stretch ok. in warm weather I wad up a few space blankets "garrington insulator" style. In colder weather I have bought a few layers of wal-mart poly batting insulation and cut it "hammock bottom" shaped. it's small, light and works rather well (I also have a blue pad in the hammock). It gets me down rather cold.
Bill if I had a old down bag I would. I want to keep this whole underliner setup under a pound! I have a old sythetic bag but it weighs in at 3.5 pounds whole! Phat I will look into that insulation Thanks, that might be the ticket. I saw your sil poncho setup last year when I made my plastic underliner. That would be nice but i am out of silnylon. My ripstop underliner so far is 4 oz. Not bad a ounce heavier than the plastic one I made. It will be quieter though! Going to wally world tomorrow to chk out insulation!
After allot of searching I found the perfect insulation. Joann fabrics had 1/2 inch thick polyester bat insulation. It weighs only 4 oz. per yard 48 inches wide. I am going to sandwich this between nylon ripstop outer layer and Mylar space blanket top. The mylar will be against hammock bottom. Inside I am using a wide custom cut Gossamer Gear 1/4 thick evosote pad. I will take some pics during construction and post later. total underliner weight should come in around 12 OZ. If real cold out I plan to layer my down vest and extra clothes between hammock bottom for extra insulation! I will let ya know how it works out in testing. Best part about the insulation it is onsale fifty percent off. Only 9 bucks for enough for two underliners! 3 bucks for space blanket , free ripstop. couple bucks for elastic cord . grand total under ten bucks per hammock!
Loc: Maine/New Jersey
I am having a similar situation going on too. I need an under quilt for my Hennessy Expedition...but under quilts are pretty expensive, and the one I wanted from Molly Mac Gear has been out of stock for close to 2 months (and I recently heard from the owner that the sewers are no longer with them so they are not sure when they are going to be in stock), which bummed me out. At 11.6oz, $135 for a full length UQ good to 40F is pretty god! Most other for that weight and price are 3/4 which I do not want to fuss around with a 3/4.
So I got to thinking...what about using reflexcell? Or a Space Blanket? Sew in some corner loops to attach some kind of cord and walla, UQ. I am not sure how low you can get down too, but worth some testing in the backyard.
"To me, hammocking is relaxing, laying, swaying. A steady slow morphine drip without the risk of renal failure." - Dale Gribbel
I got mine sewn up. seems pretty nice. Set up but I need to extend elastic cords to allow for a bit more strech. I was amazed last year how much a piece of thin plastic helped. I will snap a few pics and post. I have to make a second one for my sons eno. I have to sew a couple of side loops on the eno first or I dont think it will stay under him.
Kent, I have been hammock camping for some years now and absolutely love it. Underquilts sure beat out a pad any day. Have you been to Hammock Forum yet. Check it out, lots of ideas about DIY gear. How low have you taken your liner?
Well the new one hasnt been tested yet. It is complete and I think will work well. Last years in Smokies it went down to 22 degrees at night and I had a piece of palstic a space blanket and spare clothes under me. I was in a 20 dree rateed REI Kilo sub bag. I think twenty is pretty generous for the loft of this bag. I slept in long johns and was mostly comfy. I had a thermarest ridgrest in hamock as well. I will test my diy underliner soon. I know it will be warmer than last years. I can always add my fleece and down vest in between. I dont winter camp per say But in Mts in early spring it gets cold at the drop of a hat!