“… 8 , 9 For example, sleep is shown to serve many metabolic, immune, thermoregulatory, cardiovascular, and respiratory functions, all responsible for the normal brain and body homeostasis. 2 , 3 , 7 , 10 , Along with these functions, sleep is shown to play a key role in important cognitive and psychological processes, including learning and offline memory consolidation, 8 , 11 human heuristic creativity and insightfulness, 12 – 15 cognitive abilities, 16 – 21 consolidation of emotional memory, 22 – 24 and emotional processing 25 – 28 including stress-related coping strategies. 29 Also, a recent study points to a role for sleep in sustaining the so-called default mode network of the brain during quiet wake, which is important for adequate cognitive processes.…”