Why should I put four pillows in a hotel room?

The four pillows in the hotel room can play different roles according to the sleeping position:

1. When lying on your back, if your shoulders exceed the pillows, it is easy to put pressure on the cervical spine; If only half of the head is attached to the pillow, the cervical vertebra will be suspended, which is also an improper sleeping position. At this time, a pillow can be placed under the head and neck to make a real pillow. The pillow should be just padded from the whole head to the neck, not to the shoulders, and not only to the half of the back of the head. The other pillow is placed under the knees, so that the knee joint can be in a state of mild flexion and relaxation.

2. If you lie on your side, the width of your shoulders will cause your head and neck to hang up. If the pillow is low, you can put two pillows together and put a small pillow between your knees, which will make you feel very comfortable.