Answer:
What loses its head in the morning but gets it back at night?
People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?
I move without wings Between silken string I leave as you find My substance behind.
I am rarely touched but often held and if you are smart you'll use me well.
I am easy to see but no one likes looking at me. Without me there would be no you. I can make you complain or make you happy. But you almost always take me for-granted.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.