AirNZ also have their new
Skycouch, which is 3 economy seats that convert into a flat bed. I haven't had a chance to try it, but it sounds good. (Currently only on 777s, which are currently on AKL-LAX-LHR and back - that might change by Xmas, but probably not). You pay for 3 seats for two of you (I'm assuming no accompanying minors), so comparable with PE.