The biggest issue was the neighbor upstairs.
Every morning at 5:30 am, he would start walking around his house. I'm sure he is a big guy because the sound of him walking around in the place was Bam Bam Bam for 45 minutes every morning.
We felt as if he was walking just above our heads.
Only after he left home could we sleep again.
I understand that this is not the owner's fault.