Originally Posted by atlantic
in terms of sleeping comfort there is actually no big difference because the A340 seats are angled when flat
. This position is IMHO not really useful. Even the crew will recommend the lazy Z so that you don't wake up on the floor and get run over by a cart. There are of course other nice things about the A340 like the on-demand IFE (if it works of course) etc.
I agree with this comment, although instead of saying "This (flat) position is IMHO not really useful.", I would say it is utterly useless.
The seat are very comfortable in almost any position but flat. The angle is way too steep and you wind up sliding toward the floor. There are other threads on this subject. In the seat pocket with the magazine, there is a guide to how to operate the seat. By all means, read it! It provides a number of very useful tips on how to set the seat up in various positions.