Oh, and little details no one mentioned before we got it: that it will take a week or better for him to get used to sleeping with the helmet on; it will smell like a dirty sock over time; and it will pinch his eye. Though the sleeping aspect is annoying (I think he might have slept one night it in it thus far and wakes up every 30-60 minutes when he does sleep in it), what I'm bothered most is the pressure it places on his eyes, particularly his left. It makes him look like he's frowning! My happy baby now has a near perpetual frown. I also worry that it might cause him to have a lazy eye or in some way inhibit the proper development of that side of his face.
Here he is at the "fitting" appointment. They made a little more room for his eye than shown here, but not much.
Despite Mom's worries, for the most part he ignores the helmet during the day.
Obviously, he has more important things to concern himself with. "Enough picture-taking, Mom!"