<prompt> Sleep centre is located in -Basal gangliaMedullaHypothalamusCerebellum  <response>: Ans. is c i.e., Hypothalamus o Sleep centre - Hypothalamus Preoptic area of anterior hypothalamus,o Wakefulness centre - Reticular activating system in brainstem hypothalamus.The sleep centre is in hypothalamus -- Understanding of medical physiology.The patients who had experienced sleeplessness before dying had brain lesions in the preoptic area of the anterior hypothalamus which came to be known as sleep centre. -- 