doesn't laying on it compress down to the max? If so wouldn't you ruin a down jacket if you where to sleep with one to lower the rating of a certain bag or just ruin the down thats on the underside of you in your bag? How does laying on it compare to compressing it in your bag? Since when you roll around with your bag aren't you compressing the down from the sides as well and not just the down on the bottom? So wouldn't that break the fibers?
I just got my first down bag this year and try to take good care of it by only compress it enough to fit in its supplied stuff sack. I also baby it by only putting it in the stuff sack at the trail head and not on the drive to the trail head. Then when I get back to the car take it out of the stuff sack and put it in the storage sack for the ride home. This way it doesn't spend extra time compressed. Is this a bit much?