We've all been this tired.
Apollo the dog passed out on the couch, briefly woke up to find himself on the floor before going right back to sleep because floor, couch, whatever man, he's exhausted. It's a surface and he's going to sleep on it. And don't go worrying about him, he was totally fine. In fact, we've a feeling this happens quite a bit seeing as there's a camera set up to capture it all.