Yes, despite the fact that this position seems to defy both comfort and gravity, Max is really, truly asleep in this picture. No, I am not joking.
He seemed as confused as I was as to how such a thing could happen. When he woke up I said, "Hey, how was your sleep?" and he said groggily, "Sleep? Max sleep bench?" I agreed that this was how it had gone down, and he blinked at me in quiet bafflement for several long moments before requesting milk.