to sleep is to be satisfied...

The key to happiness in life may start with simply getting a good night’s sleep, AAP reported Sept. 10.
People who sleep six hours per night or less have “significantly lower levels of satisfaction with their health and safety” compared to those who get between seven and nine hours of sleep, says lead researcher Robert Cummins, Ph.D., of Deakin University in Australia. The findings come from the latest “Wellbeing of Australians Report,” part of the Australian Unity Wellbeing Index Survey.
“Bringing this to light might encourage people to flick off the light switch or put down the remote control a little earlier,” Cummins says.
In addition, sleeping too much brings down your well-being as well, the report shows. People who sleep 10 or more hours per night have lower levels of life satisfaction than those who sleep seven to nine hours. Too much sleep may signify a lack of purpose in life, leading to depression and malaise, the researchers say.
Around three in 10 workers in the U.S. get fewer than six hours of sleep per night, according to the Centers for Disease Control and Prevention.