WATCH: How to trick your brain into thinking you slept well

Believing you had a good night's sleep when you didn't can help improve your attention span and performance. But can you really fake it? The latest episode of Braincraft offers some brain hacks to help you fake eight hours rest. WATCH THIS : https://www.youtube.com/watch?v=yI7cfCVkI5A OK guys, it's time to stop talking about how tired we are - as the new episode of Braincraft explains, it's actually making us more tired. Researchers have shown that people who believe they've slept well and "deeply", even when they didn't, perform better on tests than those who're told they slept badly. So simply believing you had a good night's sleep can improve performance. But can you actually "fake sleep" and trick your body into feeling better? Obviously it's not very realistic to have an expert tell you you've slept well every single morning - so how else can we fool our brains into thinking we slept better than we actually did? As Vanessa explains in this episode, there are a few clever tricks, including active relaxation and napping, that can help you replicate some of the affects of sleep, even when you're running on three hours of shut eye. And if all that fails, simply not mentioning the T word ("I'm so tired!") can also help. Check out the episode above for tips on how to feel refreshed when all you really want to do is hit 'snooze' for another couple of hours. And let us know if anyone has an expert on hand willing to tell us how amazing our REM sleep was each morning.