Dr Matthew Tucker, the leader of the research team, and his colleagues from the sleep lab at the City University of New York did an investigation to prove that daytime napping can actually improve your memory.
     The volunteers were asked to remember pair of words e.g 'clock' and 'hands'. They also had to trace a mirrior image of a complex pattern in a test to show their ability to learn an action.
     Then half the group were taken to a sound-proof chamber to have a snooze while the other half relaxed and watched t.v and read magazines. The maxium the sleeping group were allowed to sleep for was 1 hour, but the average time that the people spent sleeping was 47 minutes.
     After 6 hours from when the started the experiment, they were all re-tested on both the mirrior and memory games. Both groups did equally as well as each other, but the group that had the daytime snooze did better on the memory test then the ones that didn't as they got 15% more word pairs then the other group.