You could make a bag to put the quilt in and he can still use it as a cushion.

Years ago when DH was in the TV repair business his pants would wear through the knees. I cut off the bottom pant legs of his Dickies and made a quilt with flannel backing and an old blanket for batting. It was very heavy and we used it for our drag around to picnics quilt. Somewhere along the line it must have gotten left behind. I often wonder where it ended up. This was long before I'd ever heard of labeling quilts.

Instead of backing the blanket/quilt with flannel or other cotton, use polar fleece.

The first time I made this way, my mom told me I was crazy to use stretch fabric without a stabilizer. Since I finished that blanket, we both swear by it for anything small enough that we don't have to piece the back.

Pros:

1) It's REALLY warm, even if you don't put any batting in. Want it even warmer? Use batting or a second layer of fleece.

2) Unlike cotton, fleece retains most of its insulation value when wet. I haven't field tested too rigorously, but what experience I do have with these in the rain says that if it's damp and you wrap up with the fleece side towards your body, it will keep you warm even if the other side is cotton.

3) It's soft and washable.

Cons:

1) It is stretchy fabric. I recommend that you pin it really good before quilting or tying, quilt or tie at a maximum of 14" intervals, and if you're quilting, be aware so you don't accidentally stretch or warp the fleece.

I bought a wool quilt once at a farm auction in Kansas. That sure helped me out keeping me warm when I was stranded in a few snowstorms back east.

I have a denim rag quilt in the trunk of my car. Very heavy, use it at picnics and when my grandkids like to play outside. Don't know how warm it would be if I was stranded in the car. It's so heavy, it's stiff.

a polar fleece blanket is nice too. trim the border and emb. an initial or something relevant to him.