I remember one flight, LAX-LHR, 10 hours, I had FIVE seats to myself in Coach. I put the armrests up, made a little bed with all the pillows and blankets, and zonked out. It was wonderful. I slept 180 degrees flat.
Another flight, coming back from LHR, I had three seats in the side section: window, middle and aisle. I also had the Sunday Times of London. It was luxury to spread out and leisurely read the entire paper, sections A through O.