A mattress that can protect the spine is called a spine-protecting mattress, also called a head-up mattress, and its head is tilted. The design principle of this product is called "Mackenzie therapy", which is widely used by the world rehabilitation medical community to alleviate spinal problems. So Mr. Mackenzie won the Imperial Medal of Queen Elizabeth of England, and it also has a padded pillow, which can be used as a common product. Please refer to!