Programs: BA Silver,Emirates Skywards, Lufthansa, AA, SAA, Discovery Gold, Accor A Club, Southern Sun
I flew J from Joburg to Dubai and back in November 08 and experienced the lie-flat seats on the 777-300ER. Great seats but on the flight going north I found the lie flat position to be very bumpy. As a result, I got little or no sleep. Coming back, I was offered a thin mattress by the flight attendant, which I accepted. This made a world of difference! Suddenly all the bumps were gone and it was an absolute pleasure-I slept like a log. So, make sure you ask for the thin mattress when using this seat in the sleeping position.
One other point--these seats have this strange little device for controlling the ICE. It's a tacky little mock wood thingy that's exceptionally irritating to use. Rather stick with the conventional remote, which is also provided.
The massage feature on the seats is also very good.
The Emirates "Sleeperettes" are basically an improved Economy Class...
Don't get fooled by the name, you will not be able to sleep at all on these things. Thank god they will phase out the planes that still have those, but only until 2015.
Has nothing to do with an up-to-date Business Class. Do not book any flights with Emirates that offers these seats! - You will be totally frustrated, even if you don't have to pay for the flight yourself!