Iwash natural batting, takes care of the shrinking and wrinkles.

I was told to put the (dry) batting in the dryer for 10 minutes or so and the wrinkles have come out for me. I have not made a great number of quilts but the ones I did make seemed fine.

If its been folded I do, especially when I'm in a hurry. Sometimes I just hang it out on the clothes line for a day, but I'm not patient enough to wait a whole day most of the time.

I use warm and natural and not only always press it but I preshrink it beforehand. This sometimes gets awkward as the pieces can be large for a large quilt. But you can wet it down in the bathtub.

Fluffing it in a dryer makes a big difference. You might want to try that.

After a very bad experience with literally melting/fusing a poly batting in the dryer, I now lay it out on a bed. I then spray it with a wrinkle-resist product, then smooth it out with my hands. I then turn on the ceiling fan and let it dry. This takes out some wrinkles, but doesn't really get out the major creases and poofs. I've only used bagged battings which are often rather wrinkled.

I think I will try the dryer again but will use a wet towel this time. In my first attempt, I had only sprayed a little water into the dryer.

I never thought of ironing I have always used the dryer then lay it on the bed in the spare romm and is always smooth

I also use this method and fine it works really well

I don't use the pre-packed batting anymore because of all thw winkles and thin and thick places....so i purchase it on roll when it is on sale....much better....of course i have to save up some monies......but well worth it !!!!!

Yes, I press. I use a poly/cotton batt. It often stays in the original packaging for ages. After I lay the batting out across a bed for a day or two, if there are still wrinkles or "thick spots", I use a dry warm iron to work it all smooth.