Some medical beds have a similar feature where the mattress will inflate/deflate in different areas to best match the patient's weight distribution. They'll als

Some medical beds have a similar feature where the mattress will inflate/deflate in different areas to best match the patient's weight distribution. They'll also inflate/deflate on a cycle. Supposedly it's good for patients that stay in bed for long periods without moving as it improves circulation, reduces back pain and prevents bed sores.