What size are those pj's?

One morning last week I went in to Ben's room to get him up. His room was dark since he has dark curtains and the light was off, but I could see he was stooped over. I turned the light on and walked to the front of the crib to see him standing there, stooped over in these obviously too small footed pajama's. I picked him up and noticed they had a snowman on the front of them. They are size 6M (3-6 months)....only one size larger than what Garrett wears. Shaun stuffed him into these pajama's the night before and never noticed they were so tiny. I can't belive he slept all night in those itty bitty pj's.