When it comes to sleeping habits, there’s a great divide. Some people hit the pillow and, within minutes, they’re asleep. Others lie awake for hours trying to find ways to switch off, though fewer people probably turn to the traditional practice of counting sheep.
Some people believe they can live normal busy lives on just four hours’ sleep, as some political leaders have claimed. Others swear by nothing less than eight hours a night. Medical opinion generally recommends regular sleeping habits — going to bed at the same time every day and getting the requisite eight hours. However, that scenario can prove difficult for people like shift workers who have to change their sleeping habits regularly.