Ok, so I added a loop to a synthetic quilt I have….so far its promising ->

Initial results seem promising. I think I would need to move the loop back a bit or maybe even add a second loop a couple of inches lower in case the cord is really long, otherwise there is a chance it lays back towards me.
Now Lee said ->
I have the cord pulled enough I clip it to the hook the cord locks through the hook nothing’s in the way and when it gets cold and I’m actually got it pretty tight I got about a foot-and-a-half of string it seems like so it’s sort of hanging down near the pad where I can stick my fingers out and find it and get it later if I need to pull it tighter without actually using the cord lock
I would still love to see a picture of this. If I put the cord lock through my loop (similar to putting it through the mitten hook), and tighten, then the drawstring opening and the loop just get pulled closer together and defeats the whole purpose ->

Ok….I also had another idea for this problem. What if there was a button sewn onto the top of the quilt? I’m thinking like those paper binders with a string closure, like this ->

Basically you could have the button, then loop around a few times your extra drawstring cord.
If you don’t have much drawstring, just do a simple loop like this ->

And if you have more, loop it like the paper binder thing ->

I think I actually like this idea better than the grosgrain loop, though ever so slightly heavier. However…it would have to be done during the quilt making I believe. So, I like it b/c the button is still smooth, so I wouldn’t worry about that extra “hardware” during washing (a mitten hook I would be slightly worried about).
I don’t like it ….b/c I can sew a grosgrain loop without much issue to an existing quilt….but not really a button…b/c the needle would have to go all the way through the top and bottom of the quilt. Actually…wait…I think I take that back. I could just pinch a half inch of fabric near a baffle seam flat then use a standard hand needle to attach it to the quilt. I would have to worry about getting the right tension (not too close, and not too far), though it could be doable…