Well, the sunbathing worked - Adam got a clean bill of health at his follow up appointment today. He's much less yellow, and he's gained four more ounces in forty eight hours.
Yesterday after his sunbathing he was so hot and sweaty that we gave him a bath. His favorite part is the hair washing. The rest of it, he does not so much enjoy.
We've also started doing some tummy time here and there. It's mostly funny to me because Ellie is very invested in Adam doing tummy time, and meanwhile, she was the queen of pathetic, face down weeping when I put her on her belly. But she definitely wants Adam to get to work!