Sleeping on a flatbed on a 777 is like inserting yourself into a giant vibrator and then switching it on for 12 hrs.
Is that good or bad?
I was going to post the same question! I'm still interested in hearing the answer.
FWIW, I'm quite happy with C class in the 380s, 777s and 787s for what I need to do. Though there was that one time I ended up getting booked in SQ F in my own stateroom from FRA-SIN due to IRROPS. An entirely different planetary experience.
Back to C class, the EK 380s are definitely top-notch, especially with the little Bistro at the back of the upper deck. Yes, their route structure is impressive.
I remember when once upon a time CO offered a mid-court bar and lounge seating on their DC-10s...