I don't advise ironing. I would not have wet it at all. I am not expert but have gotten out the bag-wrinkles this way:
I suggest you put it in the drier for 20 minutes to 1/2 hour on 'wrinkle-release' so it is just gentle warm air. Put a damp linen dishtowel in there with it just for a little damp air. Then spread it out on the sofa or on a bed, gently so as not to pull it out of shape but firmly enough to give it a reason not to wrinkle up. Then let it be for a couple days and see if it relaxes.
This is what I did with my warm and Natural. After fussing over it, I was usually able to smooth it out and the wrinkles go away as you press it against the backing of the quilt - cotton-to-cotton friction.
Good Luck!