No one should sleep without a pillow, but if you have some health problems, this should not be done categorically, – said the Honored Doctor of Russia, chiropractor Andrey Kabychkin in an interview.< /b>
Explaining in an interview who should not sleep without a pillow, Kabychkin noted that this should not be done for people with a headache. In addition, the pillow must be used by people with disorders in the health of the spine (especially with disorders in the cervical spine).
“Sleep without a pillow is contraindicated for those who suffer from cervical osteochondrosis, cervical radiculopathy, herniated disc of the cervical spine , vascular diseases associated with the vertebral artery,” Kabychkin said in an interview with Sputnik radio.
The specialist added that it is more useful for people with these deviations to use not an ordinary pillow, but a special orthopedic product.
Also, Kabychkin expressed the opinion that even those who do not suffer from the listed pathologies should sleep with a pillow. The chiropractor warned that the rejection of it is bad for the state of the brain.
The doctor explained why you should not sleep during the day
“From the point of view of the blood supply to the brain and spinal cord, it is completely wrong to sleep on a flat surface, since this creates uncomfortable conditions for the carotid artery, vertebral artery, subclavian vein and other neurovascular plexuses,” the expert explained.
The doctor clarified that the cervical the spine has a natural curvature, and it must “fill in” to provide support to the neck – in this case, the vessels passing through the neck do not experience unnecessary stress, are not at risk of spasms and fully nourish the brain with blood. In order for the pillow to properly support the cervical region, its thickness (height) must be equal to the length of the shoulder. Those who believe that sleeping without a pillow is more useful, Kabychkin warned: such a habit harms the cervical vertebrae, threatens to infringe on the nerve roots. wrote that constant sitting at home is fraught with the development of certain diseases. 
Andrey Kabychkin Health Honored Russian doctor, vertebroneurologist, chiropractor, reflexologist