How To Sleep Like a Pro

Richard Wiseman’s Night School book helped popularise the notion that to wake up feeling good you need to go to sleep at the correct time interval relative to when you want to get up. You can work out when that time is via one of several internet sleep calculators such as:

(with the caveat that you might find yourself lying awake stressfully thinking “I must sleep now or it will be too late and I’ll need to wait another 90 minutes. Sleep now. Now! NOW! …”)