Many get in, but none come out. Those inside sleep, but never wake up Riddle

Question

Riddle:
Many get in, but none come out. Those inside sleep, but never wake up. What is it?

LunaLovegood · Answer

Answer: A coffin. They go into it after they are dead and have no ability to come out. Death is sometimes called an eternal slumber as well.

Many Get In, But None Come Out. Those Inside Sleep, But Never Wake Up