Why don't we fall from the bed during sleep?

While we sleep, there are many things in our body. For example, we do not need to be awake to continue to breathe and allocate growth hormone. Thus, we do not need to awake, so as not to fall from bed: as if our body knows the boundaries of not very wide spaces on which we are lying.

How is this possible?

A sourse: zen.yandex.ru

Consisting of billions of nerve cells, each of which can come into contact with thousands or even tens of thousands of others, the brain is inevitably the most complex organ of the human body. However, many believe that a person uses only 10% of his brain. For example, the Questionnaire of 2019, compiled by the Michael J. Fox Foundation for Parkinson's Disease Research, shows that about 65% of Americans share this point of view - a myth that repeated repeated in articles, television programs and films. Although it is true that not all brain areas are active at the same time, our standard brain visualization methods may show that most areas such as muscles are active within 24 hours.

A sourse: zen.yandex.ru

It is no coincidence that the brain, which is only three percent of the body weight, uses up to 20 percent of its energy. In the human body there are sensors in each muscle, tendons and bundles, known as propriceceptive receptors, the role of which is to provide the brain of important information about the dynamics of the world, including where the body or part of the body is spatially located at any time. Considering the foregoing, the brain remains extremely active even during sleep: it does not turn off his internal monitoring system, sensitive to discomfort, sounds and movements and regularly regulate the position of the body, aware of the place in sleep space. As for the young children, which from time to time fall out of bed, their proprioception is not yet developed.