Sleep is our brain’s opportunity to recharge. So much of our cognitive, executive, and emotional functioning rests (no pun intended) on getting good sleep. One of the principal functions of sleep is to help our brains with memory consolidation – the process of transferring the things we recently learned into long-term memory.
Brains, like muscles, do not grow strong and resilient through constant, exhaustive effort, but rather through intermittent periods of manageable stress, and rest. The default mode network is all about connection: connection to other people, to our pasts and futures, and to ourselves.