I don't know what you mean by mediator sentence
The mediator was cool, calm, and collective in the heated situation. b
sleeping beauty
Build the bridge strong and wide.
No it shouldn't be. Unless, it forms part of a title or is at the beginning of a sentence.
It should be: "I was sleeping when you called me."
Are you sleeping, are you sleeping, Brother John, brother John, Morning Bells are ringing, Morning Bells are ringing, Ding dong bell, ding dong bell.
The cat is sleeping on the window sill.
you wont
The simple subject of the sentence in the question is brother.
You write it "My brother and I" My brother and I.
Does your brother work in a hospital? is the correct sentence.
You sleeping with a girl/boy and it turns out they were your brother/sister