I have a Jacks R Better medium-temperature sniveler which I think is the Sierra and it was worth every penny to me. I got the Dri Down and it proved its worth in a torrential downpour on a group camping trip at the beach where I was a ground dweller. But beyond that, and the reason I went Jacks R Better for a quilt and the reason this drop is worthwhile is that you can wear the thing! I'm all about multitaskers!

I also picked up the down sleeves for my quilt and do have to caution that if you are a petite woman like myself, they are a bit oversized. But I really, really like the down sleeves even as a stand-alone product and have used them as everything from sleeves on their own to sleeves with my quilt-jacket-poncho-thing to down booties to leg warmers.