Costco Underquilt - DIY, No Sew, No Snap, Fast, Easy & Cheap 

Very helpful. I have this exact blanket and some small grommets. You just saved me 40 bucks.

Great video! I just made my version of this. I used a old sleeping bag. Can't wait to try it out!

So I bought a cosco underquilt that someone had already converted by using the sewing method. It looked super clean and Professional. I ended up doing exactly what you did, and it works even better... the grommet idea works so well bc it allows the hammock to compress at the foot end, keep the air out better. Its amazing how well it works. I went with shock cord all the way around and it stay put all night long. Thanks !!!

Just made one! Good video thanks for putting it out there. I am not a sewer so this is perfect. I did use the grommet every other square though.

Great video. Just got done with making mine out of a lightweight down blanket. Came out perfectly and was super easy too. Thanks a million.

Looks like a great design. I would have liked to see how it works with the hammock in it.

That idea is gunna be perfect fer the gear sling I use fer my chair. The CBS is uncomfortable, but that's a great solution ta make a custom size perfect fit underquilt, and I'll have leftovers so I can incorporate sum kinda top quilt jiggy.....thanks .

Nice job. I'm going to give it a try. I can't sew either...lol

Thank you, this was how I was thinking to do it, I appreciate the video.

I laughed at the non sewing, remembering badging, ranknetc on uniforms. On one course, I bought a sewing machine and did everyone's for a fee.

Really a good idea thanks , it sure helped me 👍👍👍

good idea thanks i have a grommet set , i can repair an underquilt that needs fixing

I love that you used grommets, I have been searching through the forums and such looking and I had the idea to use grommets for a clew style but I think this will be much easier, did it work well for your trip? is there anything you would do differently?

Looks great awesome mod

excellent video... became very discouraged with all the diy sewing versions... gonna use your method and make my own... thank you for a great video. do you have any footage of this with your hammock hanging in it?

I got discouraged when I watched a video somebody making the Gemini version with all the snaps call the cordage. This video made life so much easier. How did you make out using it.?

best way to do it

Great idea! What grommet tool do you recommend using? I’ve been interested in rigging and repairing regular tarps also. Thanks for the ideas!

Just last week I was standing in harbor freight holding the pack of tarp clips in one hand, and the grommeting kit in the other. Put them both down because clips were going to cost and weigh more than I wanted, and I was unsure of using grommets on the quilt. I will be returning to HF for the grommets, thank you for giving me the confidence. Like previous commenters, I'd love to hear if you had any further thoughts on the design after having tried it out.

Genius! !

What size shock cord are you using and what size fasteners to hold the cord?.

But what about weight and space in backpack? Lot of people don't consider that

Did you reinforce the fabric around the grommets with anything? If not, have you had any problems with tearing?

do you know how it works in the winter

So how did it work out? It's been at least two years.

I checked all the Costco's here in Phoenix and can't find down quilts like what everyone is showing, Costco people says that the quilts have polyester fillings not down, do you have a barcode number that I can use to hopefully buy one

.....you havent tested it out?????

How warm is this?

Curious how it works outdoors. Also curious if the stitching starts to unravel as it looks like a lot of the grommets cut right through the sew lines.