0903_sommer_getty"Mad Men" star Rich Sommer now has a little man of his own -- because his wife just gave birth to a son!

Sommer, who plays "Harry Crane" on the show, and wife Virginia welcomed Patrick Ryan Sommer to the family yesterday in Los Angeles.

"We are loving hanging with our happy, healthy baby boy, and appreciate our family and friends joining us in celebrating this exciting time," Rich tells PEOPLE, adding "Also, he looks way better than I do in a onesie.”

Sommer is riding high this week -- his show also won for Outstanding Drama during Sunday's Emmy Awards.