I think you are on the right track with your last comment.
It would take a very hard hit (60 to 100G's) to cause a brain bleed. The butter door would break off at much less force than required to cause a concussion or brain bleed.

Why are you concerned about improvements in your sleep ? Most people with concussion struggle to get proper sleep.

Anxiety from a bump can often cause symptoms worse than an actual concussion.

Regarding anatomy of the skull. The temple is one of the strongest/hardest areas of the skull. It has thick bone. There are nerves in the skin in that area that can be injured and painful but they are just to the skin and forehead muscles.

Others have commented in another thread about anxiety induced symptoms and how there is a need to just ignore/forget about the bump and the anxiety and symptoms go away.