translated from Spanish: Why swing can help you to sleep better (even if they’re adult)

We know that cradle a baby helps you sleep better. And anyone who has been sleeping in a hammock recognizes that it can be a pleasant feeling.
Now, a new study suggests that a soft rolling overnight could greatly improve the sleep of adults.
The University of Geneva researchers wanted to find out if a bed is rocking like a cradle could help adults to sleep better and longer.
To test this hypothesis the research team built a special bed that moves smoothly.
The volunteers, 18 young adults, spent three nights in a laboratory of sleep in Geneva: the first to get used to the new environment, the second on the rocking bed and the third without rocking.
What is the number ideal hours thing to sleep a day (and how) the researchers recorded their brain waves and discovered that deep sleep period was longer in the rocking bed.
In addition, the participants fell asleep faster and woke up less during the night.
Laurence Bayer, lead author of the study, points out that the rocking motion was slow enough to cause nausea.
“A hammock probably would not be as efficient, but for many people it is a very relaxing feeling”, said the researcher.
The neuroscientist Sophie Schwartz, who also participated in the study, says that this research also explains why people stay asleep on trains and other vehicles.
Good for the memory in addition to sleep better, swing while you sleep also could improve your memory.
The researchers found that the volunteers in the study had a better memory than had learned the night before if they slept on the rocking bed.
The University of Geneva team asked participants that they memorizasen pairs of words at random and they try to remember them in the morning.
Why the less sleep shorter will be lifetime memory of volunteers was much better after a night in motion after sleeping on a normal bed.
Why can rolling help to sleep?
The researchers suspect that these external rhythmic movements could stimulate our vestibular system, sensory system that contributes to the sense of balance and spatial orientation.
To test this hypothesis, they analyzed mice lacking this vestibular system. And indeed, these mice experienced none of the beneficial effects of rolling while they slept.
Although it seems that the rocking beds will be for sale in the near future, the results of this research might be useful for people who suffer from sleep problems.

Original source in Spanish