Riddle me this?!?!?!

Question: The man who made it, doesn't need it.
The man who bought it, doesn't use it.
The man who uses it, doesn't know it.
What is it??

Answers: The man who made it, doesn't need it.
The man who bought it, doesn't use it.
The man who uses it, doesn't know it.
What is it??

a coffin