Laz didn't have any answers and went to bed still thinking on it. One fact to note is that Laz didn't need to sleep anymore, at least, not the entire night. In fact, he could go days without sleeping and still be perfectly fine. Despite this, he made it a habit to sleep at least a few hours each night, even if it was only two or three. As for why he did that, it was because he knew that his brain enjoyed the shut off time as much as he enjoyed relaxing. Basically, it was like treating his brain to some rest and relaxation.
As for what he did when he wasn't sleeping? The same thing he always did, exercise.