Śeṣa Nāga—an expansion of Lord Balarāma or Saṅkarṣaṇa who takes the form of a many-hooded serpent and serves as Lord Viṣṇu's couch and other paraphernalia. He also holds the millions of universes on His hoods.

Sesa Naga-an expansion of Lord Balarama or Saṅkarsana who takes the form of a many-hooded serpent and serves as Lord Visnu's couch and other paraphernalia. He also holds the millions of universes on His hoods.
 

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