The formula for a 'perfect night's sleep'

The recipe for a perfect night's sleep is a bedroom at 16 degrees Celsius, curling up on your right hand side and a few pages of a good old-fashioned book. A new survey also found that to achieve zen-like conditions you will need two pillows and a bedroom painted white. You should also leave at least 37 minutes after check your phone one final time before closing your eyes. An ideal night's rest should be eight hours long and the perfect time to go to sleep is 10:39pm.