well, they said we CAN buy a 4th but would have had to do it when we booked the original 3 not do it now.........

my hubby is 6'5" and I finally convinced him that we should get a 4th seat again like we did once prior because he can turn sideways and switch back and forth and then also we can let our son sleep part of the way if possible also.........it is

12 hrs for first leg
4 hr layover
5.5 hrs for 2nd leg

I think a 4th seat is a great idea and it is 1/3 the price if not even less than 1/3 price less than upgrading to business or first and still get more room at least