Why do we sleep?

The great Shankacharya says that everyone is ananda.   Being of bliss.  You know these three words that we often use?  Sat Chit Ananda.  I’m sure everyone has heard those words.  Sat chit ananda, sat chit ananda.  Sat the being, the very being.  Chit, awareness, awareness of being, consciousness of being or just the force called consciousness.  And ananda, purnam, completeness, bliss, totality of bliss.  All the pleasures of the world are little sparks of that fire of ananda.  All the pleasures of the world are just drops of the ocean of ananda, and every drop is trying to experience what  it feels like to be the whole ocean.  Every drop that is you and I, every drop is trying to feel, trying to see what it would be like to be the whole ocean of that joy and bliss.