Applying moderate pressure to the body is said to be an effective means of relaxing the nerves.
Studies have suggested that it can reduce stress and anxiety, as well as help with autism spectrum disorder and traumatic stress disorder (PTSD).
It is said that using slightly heavier bedding secretes more serotonin, a sleep hormone, and also has the effect of reducing cortisol, a stress substance.
The use of weighted blankets began around 1990 and has been used in healthcare facilities treating people with ADHD and autism.
There are a lot of scientific research reports on it.
In sleep experiments of people with insomnia
・ I was able to sleep more calmly
・ Sleep time increased
・ Movement in the middle of the night has decreased.
It was concluded that heavy blankets are an innovative approach that does not rely on drugs to improve sleep quality.
(From the Swedish Sleep Research Institute, published in 2015)