I am currently knitting a preemie baby hat.
Here is the pattern. I will post it when I am done!!
Needles: Size US 5
Yarn: Bernat Baby Jacquard
Try the pattern yourself, it also has sizes for up to a Child! Also, there are several variations you can do, not just the ones listed! I changed the pattern to be ALL Garter Stitch, because I feel the rib is too advanced for me. I am going to try a all st st hat next.