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  1. #1
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    Sportsman Guide Sleeping bag Mod into a 15 oz Top Quilt

    For this project I used the SG rectangular sleeping bag. The starting weight was 28 oz. The website lists the weight as 21 oz. I think this is the weight of the mummy bag.

    My goal for this project was to make an inexpensive summer sleeping quilt. The total cost of this project was $33. That was the cost of the bag with shipping. I already had the thread for this so it is not figured into the cost.

    Step 1.
    This shows the stock sleeping bag opened. This weighs 28 oz.



    Step 2.
    I wanted the final weight to be under 16 oz. That seemed to be the weight of a lot of the summer sleeping bags on the market. This would also get the weight down to that of most bag liners.

    I trimmed 5" off of each side, the zipper and draft tube off of the bottom along with a few inches of material, and the draft tube off of the top. I tapered the bottom corners to save weight. Leaving them in would only increase the size of the foot box.

    Note in this step how the bottom black material and the insulation was cut about 1.5" shorter than the top grey material. This was to save weight and inprove the edges. I double rolled the edges over. I made sure that when rolled they overlaped the insulation. This was to keep the insulation from moving inside the quilt.




    Step 4.

    I sewn the edge seams all the way around. On the top edge I removed the draw string. I folded the nylon from the drawstring inclosure and sewn it to cover where I removed the top draft tube.

    Step 5.

    I sewn the bottom 24" of the quilt for a foot box. I could have left it open and used a zipper or velcro. Sewing it was the easiest and lighted open.

    Below is a picture of the finished quilt. It shows the top and bottom views. The final version is only about 45" wide. I forgot to leave extra wide for the seams. It is also just long enough to come up to my chin. I am 6'4".







    The final version weighs in at 15 oz. 1 oz under my goal weight. If I was shorter I think I could get it lighter. It was kind of fun to cut away material and think "I'm not going to carry this piece, or this piece." With my warm bag weighing in at around 34 oz, I could not justify a summer bag unless it was a lot lighter than my regular bag.

    After completing this I think it is really doable to make any synethic bag into a quilt. It should be similar for down. I also think it would be really doable to make an underquilt out of a sleeping bag.

    This is going to be my summer quilt for my thru this year.
    Is that too much to ask? Girls with frikkin' lasers on their heads?
    The hanger formly known as "hammock engineer".

  2. #2
    Senior Member Patrick's Avatar
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    hammock engineer,

    Looks awesome, nice work. I like that color. You're right about turning one into an underquilt. I did that as my first prototype and it was fast and easy. I used a North Face Allegheny that I got cheap at REI and cut it to fit my HH. I still use it in the summer and it works great. Here's a link to a post I made about it on WhiteBlaze, if it's any help.

    Very long post
    Last edited by Patrick; 12-30-2006 at 01:33. Reason: Actually cleaned up link this time

  3. #3
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    Link has extra characters

    Hammock Engineer,
    I had to take a few of the characters out of the address to get to the link.
    Here's what I used:
    http://www.whiteblaze.net/forum/showthread.php?t=10035

    yours had some extra stuff between the http:// and the www.


    Love the post, btw.
    Tango

  4. #4
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    Down underquilt like the SG top quilt

    How hard do you think it would be to make a down underquilt using a rectangular bag? SG has a 550 fill down bag for $99 that might work. Very heavy at almost 4lbs though. I think a down hammocks by Jeff and others might be beyond my sewing skills right now.

    T

  5. #5
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    Compliments to Patrick

    Oops, sorry for the mix up.

    Patric, great write up on WB.

  6. #6
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    Thanks for the kind words.

    Patrick was the one with the WB link and underquilt project. I don't want to take credit for that one. Although I am looking for cheap bags to do that to.
    Is that too much to ask? Girls with frikkin' lasers on their heads?
    The hanger formly known as "hammock engineer".

  7. #7
    Senior Member Patrick's Avatar
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    Whoops, sorry about that link. I fixed it. Thanks, Tango61.

    It was a fun project. Very quick and easy. I would recommend making one from scratch though, as it's almost guaranteed to come out lighter.

  8. #8
    Senior Member Bird Dog's Avatar
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    Great project.....MAN, I wished I knew how to sew....

    BD
    Just Jeff made me do it

  9. #9
    Senior Member blackbishop351's Avatar
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    Quote Originally Posted by Bird Dog View Post
    Great project.....MAN, I wished I knew how to sew....

    BD
    If you get some free time, hit me up - you can come over and I'll teach you what I know. Granted, I'm fairly new at sewing myself, but I've had some pretty decent results so far so I guess I'm not terrible at it
    "Physics is the only true science. All else is stamp collecting." - J. J. Thompson

  10. #10
    Senior Member Bird Dog's Avatar
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    Quote Originally Posted by blackbishop351 View Post
    If you get some free time, hit me up - you can come over and I'll teach you what I know. Granted, I'm fairly new at sewing myself, but I've had some pretty decent results so far so I guess I'm not terrible at it
    Careful what you offer. I may take you up on it BB. I would like to learn how so that I can modify/fabricate my own stuff. I know that it would save me TONS of money and I can have my equipment just the way I want it. BD
    Just Jeff made me do it

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