Friedrich Nietzsche once said, ‘sleeping is no mean art. For its sake one must stay awake all day.'

Maximising slumber can be tricky in today's rat race, which can poach the possibility of the fabled eight hours of dream time faster than you can say ‘toss and turn'. Luckily, new research suggests we may be able to get the benefits within a shorter timeframe. Don't sleep longer - sleep smarter.

Sleep therapists advise taking naps, relaxing and exercising to hibernate effectively and wake up zingy and refreshed. So what are the dos and don'ts of catching Zs?