Answer:
The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?
My first is a body of water. My second is me. My third came before. My fourth before all three. My fifth sounds like my first. My sixth is in a lake. Put all six together to make an animal that will keep you awake.
As I walked along the path I saw something with four fingers and one thumb, but it was not flesh, fish, bone or fowl.
Hoofed frolicking.
What flies forever, Rests never?
I have two eyes in the front and a lot of eyes on my tail