Anyway, after speaking to my tutor, I smoothed out the bed so that it kept in style with the MRI scanner and my characters as well - the edges were too harsh before and a little distracting and then added a few edge loops to the base of the MRI scanner and the front of the scanner to give it a more uniform look.
I've added in the head rest as well, just so it doesn't look like my characters lying on a..plastic plank?
The space below the head rest on the actual bed means that the head coil will be able to slide straight over Jess's head when I start to animate. Progress is finally being made!