Side. Stomach. Back. Fetal: Most people have a preferred sleeping
position. But can the way you get shut-eye say something about your
personality?
Several news outlets including the Daily Mail, the Telegraph and Fox have recently cited research that asserts a direct connection between sleeping positions and psychological characteristics.
But some experts say there is little evidence to back up the claims.
And as it turns out, the recently cited "research" is actually a survey
-- conducted by a hotel chain -- about the most common sleep positions.
Robert Phipps, a U.K.-based body language specialist, then gave an analysis he says was akin to a horoscope.
"Yes, it was never meant to be taken seriously and there was no
research on my part," Phipps told The Huffington Post in an email.
The analysis in question linked sleep positions with different personality characteristics. As the Telegraph reported:
People who sleep in the fetal position are "worriers." (The tighter
they curl up, the more comfort they're supposedly seeking.) Those who
sleep on their stomachs, with their arms stretched are "free fallers.
(They reportedly feel their lives are out of their control.) "Yearners"
-- those who sleep on their sides, with their arms outstretched -- have a
dream-chasing nature about them. And "Logs," those who sleep straight,
have rigid personalities.
Despite
the idea of a "sleep-o-scope" sounding somewhat far-fetched, this isn't
first time personality types and sleep positions have been linked.
According to Dr. Chris Idzikowski of the Edinburgh Sleep Centre, in
the 1940s, there was an article by a psychiatrist who claimed
side-sleepers lacked moral fiber. The article prompted Idzikowski's
decision to research whether there was any link between personality
traits and sleep position, he told HuffPost in an email.
Idzikowski surveyed 1,004 British subjects about their preferred
sleeping positions and asked them to check boxes with adjectives they
felt described their personalities. Through factor analysis of the data,
Idzikowski found an association between certain sleep positions and
certain psychological traits.
The BBC reported on the results in 2003:
Those who sleep in fetal position were said to be tough on the outside
but sensitive on the inside, for example. "Log" sleepers were found to
be easy-going and social.
"Yearners" were open, cynical and slow to make
up their minds. "Free fallers" were outgoing but thin-skinned and did
not like criticism.
Still, Idzikowski's research relied on self-evaluations, and he said
that when the survey was conducted among a group of Southeast Asians,
the archetypes no longer held up.
Philip Gehrman, a professor of psychiatry and a member of the Penn
Sleep Center, expressed doubts over whether there's deep meaning behind
how people sleep.
"You can't argue with the fact that they did in fact find a
correlation between sleeping position and personality," Gehrman told
HuffPost. "[But] the link between sleeping [position] and personality is
unlikely to be anywhere near strong enough to make those kinds of
statements."
So what does influence the way people sleep? According to Gehrman, it's simply personal preference.
"It's really just a matter [of whether] you are comfortable," he said.
According to Dr. Stuart Quan, a professor of sleep medicine at
Harvard Medical School, it would be difficult for people to have their
personalities tied to one sleep position, because most people move
around in their sleep.
"They will toss and turn. They're naturally switching positions,"
Quan said. "People who say 'I only sleep on my side, my left side,' they
tend to move."
On the other hand, correlations between sleep positions and quality of
sleep can exist, according to Quan, but such ties are likely the result
of pre-existing health conditions.
Sleep apnea, for example, a disorder in which people experience
irregular breathing during sleep, can be made worse by sleeping on one's
back, Quan said. Heartburn, too, is another condition that could be
made worse by the position a person sleeps.
What
can influence the quality of sleep, according to Quan, is what people do while they are awake.
"Nicotine is a stimulant. If you exercise right before you go to
sleep, you tend to be hyped," Quan explained.
"Even if you get into an
argument with your partner and then you try to go to sleep, those are
obviously things that affect people trying to go to sleep."
Caffeine, medications and exposure to certain light -- like that of a
laptop -- can all sabotage the potential for a good night's sleep. As a
result, Quan discourages people from checking emails or watching
television right before bed.
"We tell people the bedroom is for two things and they both start
with S," said Quan. "The other things should be omitted and should be
done somewhere else."
Can't sleep? Michael Decker, Michael Decker, Ph.D., an associate
professor at Georgia State University and spokesperson for the American
Academy of Sleep Medicine, breaks down which old-fashioned remedies
really work.