Yoganidrasana, (Sanskrit: योगनिद्रासन) or Yogic Sleep Pose is a reclining forward-bending asana in modern yoga as exercise.[2] The asana's name derives from the yogic sleep mentioned in the Hindu epic Mahabharata:[3] [The Ocean] becomes the bed of the lotus-naveled Vishnu when at the termination of every Yuga that deity of immeasurable power enjoys yoga nidra, the deep sleep under the spell of spiritual meditation.Yoganidrasana is described in the 17th century Haṭha Ratnāvalī 3.70.[5] It is illustrated as "Pasini Mudra" (not an asana) in Theos Bernard's 1943 book Hatha Yoga: The Report of A Personal Experience.[6] Pasini Mudra is described in the Gheranda Samhita 3.84: "Throw the two legs on the neck towards the back, holding them strongly together like a noose (Paśa).[14] The pose appears in Barbara Henning's 2005 novel You, Me and the Insects, where the protagonist travels to India to study with a meditation and hatha yoga master.