I don't know if you have such an experience:
Whether it's cold or hot, whether it's lying on your stomach or lying down, whether you're wearing clothes or not, once you want to sleep, you have to cover something to be comfortable.
Whether he is a quilt, a blanket, a bath towel or a dress, it doesn't matter if the cover is not tight, at least he has to cover his stomach.
In short, if you don't cover something, you can't sleep!
Image source: Network
Don't worry, you're not alone!
The University of Cambridge published a study in 2002 on the sleep patterns of adults around the world, and found that most people except homeless people like to cover something to sleep, whether it is a quilt or a leaf.
Why do humans like to cover things when they sleep?
The first explanation is that this has to do with our body temperature during nighttime sleep.
Circadian rhythms are the main driver of human sleep. The body's core body temperature drops from about 2 hours before going to sleep, and the drop in body temperature makes people feel sleepy, eventually helping us to fall asleep at night.
During the day, the body can do a good job of body temperature regulation, maintaining body temperature at about 37 ° C, and at night, the body temperature will continue to drop.
Especially when we go into deep sleep in the second half of the night, the temperature of the body drops to the lowest point of the day, so we need to look for external tools to help us maintain body temperature, such as covering the quilt.
The second explanation is that we are used to covering quilts from a young age.
Babies have weak body temperature regulation, in order to maintain body temperature, parents will wrap the baby in a small quilt or small blanket to ensure that they grow up warmly and warmly.
In the long run, this habit gives the body a hint that to sleep is to cover something.
Image source: giphy.com
In addition, researchers have another amazing discovery about quilts:
Heavy quilts can make you sleep more soundly.
Researchers at the Karolinska Institutet in Sweden randomly divided 120 subjects who had insomnia for more than 2 months and had combined major depression, bipolar disorder, anxiety or hyperactivity disorder into two groups, with one group sleeping on a blanket weighing 6 to 8 kilograms and the other with a light blanket of 1.5 kilograms.
It turned out that heavy blankets not only significantly improved the subjects' insomnia symptoms, but even reduced their fatigue, anxiety and depression during the day!
This may be why, although there are new duvets and silk quilts now, it is still the thick cotton quilt of the hometown that is the most fragrant!
Of course, the weight of the quilt should not be overstated, and according to personal body shape and preference, the weight of the adult quilt should be about 10% of the weight.
For people with breathing, circulation or body temperature regulation problems, people who are recuperating after surgery, or infants and young children, it is even more important to avoid covering too heavy quilts.
Otherwise, if you are not careful, you will let your mother think that you are cold when you are a child, and if one layer is not enough, you will add another layer, a layer will add a layer, a layer will add a layer, and finally the heavy quilt hell that is difficult to turn over is repeated...
As it is, the world is wonderful
Curious Tour Stop 069
This article is reviewed by experts
bibliography
[1] Worthman C M , Melby M K . Toward a comparative developmental ecology of human sleep. [J]. 2002.
[2] Raymann R , Swaab D F , Van S . Skin deep: enhanced sleep depth by cutaneous temperature manipulation[J]. Brain, 2008(2):500-513.
[3] Matteo C , Marco L , Domenico T , et al. REM Sleep and Endothermy: Potential Sites and Mechanism of a Reciprocal Interference[J]. Frontiers in Physiology, 2017, 8:624-.
[4] Ekholm B , Spulber S , Adler M . A randomized controlled study of weighted chain blankets for insomnia in psychiatric disorders[J]. Journal of clinical sleep medicine: JCSM: official publication of the American Academy of Sleep Medicine, 2020, 16(9).
[5] https://www.sleepfoundation.org/bedding-information/how-do-weighted-blankets-work
Planning and production
Author: Yuanzi Doctor Brain | Curator: Murphy, Turtle
Executive Producer: Feidi | Illustration source: Figureworm Creative
Cover image source: Dr. Lilac design team