London: Want to know what's the key to a happier life? Snuggling up for the night on the left-hand side of the bed, so says a new study.
Researchers have found that people who sleep on the left- hand side of the bed are generally more cheerful and positive -- in fact, they lead a happier and a less stressful life.

In the study, based on a survey, a quarter of people said they had a bright outlook on life, compared to just 18 percent of people who sleep on the right side of the bed.
They were also found to be better at tackling heavy workloads as well as stress. Two-thirds said they were calmer than their partner in a crisis. Meanwhile, those who sleep on the right hand-side tend to wake up in a bad mood more often.
People who favour the left of the bed also have more confidence and are more likely to be in permanent employment than those who prefer the other side. And while right-hand siders tend to earn more than their opposite numbers, those who sleep on the left are happiest at work.
In the survey, commissioned by hotel group Premier Inn, a third said they loved their jobs, compared to just 18 percent of their right equivalents. One in 10 people who took to the
right of the bed said they hated their work.
The upbeat morning mood of the left-hand sleepers mean that more than half of them refuse to swap sides with partner.
Three-quarters of Britons said they were so stuck in their bedtime ways that they would find it strange to sleep on the other side. A quarter said it would affect their mood to have to do so.
Premier Inn spokeswoman Claire Haigh said: "The research clearly indicates a pattern between which side of the bed you sleep on and the mood you wake up in. Left sleepers are more cheerful, appear to enjoy life slightly more and have a more positive attitude to the day ahead.”
"It comes down to habit and what you're used to. If you are used to sleeping on a certain side of the bed it does feel a little alien when you switch. So it seems the age-old saying about getting out of bed on the wrong side is true."