I had that SF to Heathrow once, though I recollect four seats? Only time I’ve ever had a lie-flat bed on an aircraft.
3-4-3 and 3-5-3 are relatively common on 747 and 777 IIRC.
alt Hacker News
3-4-3 and 3-5-3 are relatively common on 747 and 777 IIRC.