So in the video we can see adjustable beds. To use is personal, by control- to raise the head-ends of the beds and you can see the head rises too much to a sitting position and then bed lowers to completely flat.
read more...We now can have a look at the legs again with this particular bed the legs can be raised independently. This can be slowly speeded up. And both the head and legs can be operated together. This is good opportunity to see how a bed can act and supports different areas of the body.