Anantasana
Anantasana, Sleeping Vishnu Pose or Vishnu's Couch Pose, Eternal One's Pose, or Side-Reclining Leg Lift is an asana in modern yoga as exercise.
Etymology and origins
The name comes from the Sanskrit words anantā meaning "without end" or "the infinite one", for the thousand-headed serpent Shesha upon which Vishnu rested at the bottom of the primordial ocean, and āsana meaning "posture" or "seat".A different reclining pose named Anantasana is described and illustrated in the 19th century Sritattvanidhi. The modern pose is described in the 1966 Light on Yoga.