Oh and PS it gets worse if you have dodgy knees/hips/back  - which is not uncommon for those in business class

HiFor me the seat was awkward and uncomfortable except in that time sitting bolt upright to watch the screen.  The "bolsters" when put out to form the "bed" didn't match up properly so did not provide a level "bed".  All the movement forward and back to squeeze into and out of the space...