How many hours of sleep do we need? According to Mayo Clinic, recommending 7 to 9 hours for adults. Since sleep is so critical to health, 7 to 9 is actually a sizable range, but the key is that it can vary by person. We are all pretty good with the wake-up time since it is pre-determined by our daily-life’s demand, but how about bed time?
Dr. Michael Breus of the Insomnia Blog provides a method of experimenting with your bed time back by 15 mins in order to find your nature wake up time, and the key here is – without the alarm.
Via The Insomnia blog | Is Your Bedtime Making You Fat?