All you need to know about Pillow Tilting
Traditionally, adjustable beds had only Head Tilting and Foot tilting. Even though it was referred to as 'Head tilting', in reality, it raised the whole upper body and not the head specifically. The problem here was that if you wanted to read a book or watch TV, you needed to place a pillow or two behind your head/neck to straighten the head sufficiently. The pillow would move left and right and eventually slide down. If you didn't place a pillow, that would cause neck and back pains because the neck is not supported properly and the muscles become stressed too much. This is why adjustable bed makers invented pillow tilting.