Ensure that the ergonomic reclining chair versions you have chosen all have adjustable backs and seats. This way you can move them up and down as you require them to be. You should also be able to move the back seat as front and behind as you want to just like a car seat. For example, if you are 5’0? tall to 6’4? tall, you should find seats that are from 15? – 22? and more to help you sit as comfortably as possible.