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  1. #1
    New Member laziboie's Avatar
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    Question Question about a DIY underquilt-type setup

    I just got my first hammock (never even hung it yet) and I'm already thinking about how I can prevent cold spots on an upcoming trip. For some reason, I have it in my mind that there has to be something better than a big fluffy underquilt...but again, I'm new so I don't have a great understanding of what options are available out there in the DIY world. So here's my thoughts on a custom underquilt-type rig:

    I was thinking about using a space blanket similar to this one: Space Blanket or this one: Heatsheets Emergency Blanket and using velcro to secure it around the sides of my hammock with a small gap underneath. From what I understand, the issue is that the air under pressure points is cold thus absorbing heat from your butt. The blanket would trap an air pocket under the hammock and block wind...for ~$20 and only +12oz.

    My logic is that if there is a gap underneath the hammock that is mostly sealed and is reflecting radiant heat back (cause it is a space blanket), then wouldn't the air be warmer and thus keep you warm? Wouldn't need any fill (i.e. down or actual underquilt) would you?

    I understand that some folks have mentioned condensation being a concern in the past and I'm not worried about condensation either cause it doesn't much matter if I get condensation on a space blanket.

    Also, I would like to note that I do intend on using a 1/2" foam pad and a North Face 20* bag.

    Please help me if I am understanding this wrong.


    Thanks for your help all!
    -Matt

  2. #2
    MDSH's Avatar
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    With that kind of pad you'd not need an UQ, would you?

    .
    Mike

    But Jesus often withdrew to lonely places and prayed. (Luke 5:16 NIV)

    He said to them, “But now let the one who has a moneybag take it, and likewise a knapsack. And let the one who has no sword sell his cloak and buy one." (Luke 22:36 ESV)

    While people are saying, “There is peace and security,” then sudden destruction will come upon them as labor pains come upon a pregnant woman, and they will not escape. (1 Thessalonians 5:3 ESV)

  3. #3
    Senior Member Funny Money's Avatar
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    I recall seeing a guy use a "blizzard bag" I think it's called, as a pod.

    It has one major advantage over blankets: baffles with reflective layers on top & bottom. The baffles are elastic so they hug the user, and the air space serves as insulation.

    With your idea, I believe getting and maintaining a uniform airspace will be VERY difficult, and without it you will have outside moving air currents rob you of heat.

    Good thinking, don't give up on creativity, report back on how it goes, and don't give up on a good underquilt!
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  4. #4
    Whoooo Buddy)))) Shug's Avatar
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    Hey there......allright Gastonia. Grew up in Charlotte so I know it well.
    So....I think a camping pad in the hammock would be a better solution. Use a sleeping bag on top and off you go.
    Carry forth.
    Shug

    Whoooo Buddy)))) I Love Onions, Grits, Greens, Livermush, NC Style BBQ, Potted Meat, Anchovies, 'Naner Puddin", Peanut Butter Pie, Red Velvet Cake and Cocoa and Straaaaaawwwwberrrry Milk and Coffee Crisps....
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  5. #5
    New Member laziboie's Avatar
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    Quote Originally Posted by Shug View Post
    Hey there......allright Gastonia. Grew up in Charlotte so I know it well.
    So....I think a camping pad in the hammock would be a better solution. Use a sleeping bag on top and off you go.
    Carry forth.
    Shug
    Awesome!

    WHOOOO BUDDY!!!

    Thanks for responding...I've been reading around and I just got the impression that a pad and a bag wasn't enough. If a cheap 1/4"-1/2" foam pad and a sleeping bag take care of the cold issue, then why do people spend so much time (and MONEY) on underquilts. Seems like a lot more trouble than it's worth.

    Now granted I do not have ANY experience with hammocks and don't understand how a pad affects comfort and such, but is that the main reason; comfort / personal preference?

    I've watched your first 2 hanging basics videos Shug (they are awesome btw, thank you), and you used a top quilt, foam pad, reflectix and an underquilt. Does a sleeping bag remove the need for both top and bottom quilts? (I haven't had a chance to watch your video that you posted in your response (no speakers where I am), so I apologize if that answers my question).


    Thanks again!
    Matt

  6. #6
    New Member laziboie's Avatar
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    Quote Originally Posted by Funny Money View Post
    I recall seeing a guy use a "blizzard bag" I think it's called, as a pod.

    It has one major advantage over blankets: baffles with reflective layers on top & bottom. The baffles are elastic so they hug the user, and the air space serves as insulation.

    With your idea, I believe getting and maintaining a uniform airspace will be VERY difficult, and without it you will have outside moving air currents rob you of heat.

    Good thinking, don't give up on creativity, report back on how it goes, and don't give up on a good underquilt!
    You just sparked an idea in my head with the baffle talk. With a tarp, mylar and a hot glue gun / some sort of adhesive (I don't sew, lol), one could easily their own system with baffles like that. (It's probably been done already, but sounds like it would be fun to try.

  7. #7
    Whoooo Buddy)))) Shug's Avatar
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    Quote Originally Posted by laziboie View Post
    Awesome!

    WHOOOO BUDDY!!!

    Thanks for responding...I've been reading around and I just got the impression that a pad and a bag wasn't enough. If a cheap 1/4"-1/2" foam pad and a sleeping bag take care of the cold issue, then why do people spend so much time (and MONEY) on underquilts. Seems like a lot more trouble than it's worth.

    Now granted I do not have ANY experience with hammocks and don't understand how a pad affects comfort and such, but is that the main reason; comfort / personal preference?

    I've watched your first 2 hanging basics videos Shug (they are awesome btw, thank you), and you used a top quilt, foam pad, reflectix and an underquilt. Does a sleeping bag remove the need for both top and bottom quilts? (I haven't had a chance to watch your video that you posted in your response (no speakers where I am), so I apologize if that answers my question).


    Thanks again!
    Matt
    UQs are just wayyyyyyy more comfortable and warm. But...I live in cold country so at the time I did the videos I was adding and subtracting things from my hammy set-up.
    The sleeping bag will work for both if you can get it around the hammock and made sure it is up against your back and buttocks. I do that in deep cold but augment it with extra insulation.

    Whoooo Buddy)))) I Love Onions, Grits, Greens, Livermush, NC Style BBQ, Potted Meat, Anchovies, 'Naner Puddin", Peanut Butter Pie, Red Velvet Cake and Cocoa and Straaaaaawwwwberrrry Milk and Coffee Crisps....
    I Hope Heaven has a Bakery!!!!



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  8. #8
    Jimbo3b's Avatar
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    Question about a DIY underquilt-type setup

    The best advice is to practice at home. Start either in the back yard or an empty bedroom with the window open. It's nice to have the option of bailing when your bed is right there.

    On my bike tour last fall I used pads so I'd have it to go to ground If necessary. On the last night of camping an unexpected cold front rolled through. I bought a cheap bag to use as a top quilt and rigged up my quilt as an under quilt.

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