It is one of our most basic functions, as important as the in and out of our breath. Our need for sleep is primal, yet the pace of life means it's often pushed to the periphery, sacrificed at the altar of work, friends, study and fun.

But now science is beginning to show that getting the right amount of sleep might be the key to making the rest of our lives run more smoothly.

Big impact ... Research indicates that the quality and quantity of our sleep can affect every part of our lives.

Increasingly, research is indicating that the quality and quantity of our sleep affects every part of our lives, from success in work and school to our likelihood of developing problems such as obesity or mental illness.

Writing in the journal Frontiers in Neurology last year, American researchers highlighted the growing body of research confirming that students who have insomnia, inadequate sleep, daytime sleepiness, irregular sleep patterns or poor sleep quality do not perform as well in school as others.