Can the human body function without ever sleeping?
Sleep helps restore not only the body but the mind. Sleep deprivation can cause serious mental disorder (likely temporary). In Saratoga Springs, NY during the late 70’s, a drummer (from the UK) set a new record of staying awake and drumming for seven straight days. He was allowed a ‘comfort’ break of about five minutes every hour, but not to sleep. Likely playing a loud drum helped (more than soft violin music?). Sleep helps clear the mental registers, sorting out the days experiences (and likely demoting certain mundane memories). Lack of sleep is like clogging a funnel (which is why many computers have to be rebooted). There’s a lot more to this, but I forget!