I’d be annoyed too if my husband were sleeping (like the guy in the photo) and I wasn’t getting enough rest. Now researchers in the US have found that the phenomenon is physically manifested in the brain.

“It is almost as though, without sleep, the brain reverts back to a more primitive pattern of activity, becoming unable to put emotional experiences into context and produce controlled, appropriate responses.”

The lack of sleep certainly changes the way you make decisions and respond to stimuli. Sleeping is not an indication of laziness, some people need more, some less than the recommended 8 hours a night. Not sleeping also makes lawyers too tired to represent their clients. Keep in mind that you brain goes into creative overdrive while you daydream as well and napping 20 minutes a day can make you more productive.