I LOVE Dream Wool, Dream Orient, and dream bamboo batts. they are a dream to work with, the needle slides through the batting with wonderful ease- hand and machine quilting are wonderful. I live in Northern Michigan and my wool batt quilts and the one with the dream orient (a silk blend) are both nice and warm- fluffy, cozy...dream quilts.
i've also used Hobbs wool batting- it to is a wonderful batt. I've only seen silk, orient & bamboo from the dream company.