I would figure that if the Hero would lose his memory then the guardian of the Tower would have explicitly warned about it. I just think the Hero either careful or dense.
IKR? seems like a super important detail unless this has to do with the time travel risk Time Blob referred to. Literally the same events would have played out if Little Blob wasn't there lol. I mean, who sleeps so damn far from the most important item in the known world?! It was almost as comical as it was annoying.