Sleeping Bags

Nic Mags: Loco Libre ghost pepper 20 degree with 900 goose down. Haven't been able to use it in really cold but its like getting a hug from the Holy Spirit. Custom builds and the only downside is lead time. Owner of the company is super rad and was great to work with on my order.

Enlightened Equipment would be the alternative I'd recommend if you need it immediately. They're a little heavier but look pretty sweet.

The righteous 20 degree quilts I found tend to run between 16-20oz depending on build. They have some great guides and reviews out there, definitely worth reading loco libres quilt buyers guide wheather you go with them or not.