It’s fairly obvious that we expend more energy when awake than asleep, but new research that shows just how much extra energy is used during a sleepless night is rather surprising.
Research conducted at the University of Colorado found that eight hours of sleep saved roughly 135 calories over eight hours of wakefulness. That’s equivalent to the energy burned during a two mile walk.
It sounds like it might make sense to stay up late in order to remain trim. However, according to ColoradoDaily.com:
The researchers stressed that energy expenditure during sleep deprivation is neither a safe or effective strategy for weight loss, but the study may have implications for those with sleep disorders such as insomnia or sleep apnea.