What Am I Riddles

Question: At first I'm in pieces, but you build me and I carry you, at night when your tired or sleepy or even drunk, what am I?

Question: ***What can so easily be broken and could never be spoken?***

Question: What beats but inflicts no pain?

Question: What white coat lights up and is hot to the touch?

Question: I cannot speak but i tell everything.Im not a tree but i have a leaves. I have hinges but neither not a door nor a window. Who am i?