It looks like a good night's shut-eye not only keeps those dark circles at bay, but also keeps your memory sharp. Doubling your power to remember, research from the university of Exeter has found sleep is the key to last minute swotting.
Research out today revealed that people who get a good night's sleep can remember double the amount of information than those who remained awake, suggesting that last-minute cramming for an exam before going to bed might be a good tactic for students.
Volunteers taking part in the study were asked to remember made-up words either before a night's sleep or after 12 hours of being awake. The 'Sleepers' retained more words than the participants who remained awake according to the the findings.
Psychologist Dr Nicolas Dumay, from the University of Exeter, said: "Sleep almost doubles our chances of remembering previously unrecalled material."
Our very own sleep expert Dr Nerina has tips and advice so you can get the best nights sleep in the tool kit.