Battle of Business Class flat seats

For an airline's long haul Business Class to be taken seriously, it now has to offer passengers flat seats. British Airways were the pioneers with this concept - such was the success that competitor airlines have been quick to introduce a similar style of product.

How do they compare ?
We despatched a Research Auditor to evaluate the "flat seats" provided in Business Class by the 4 airlines below. The same staff assessed each airline, with the prime requirement to establish total "Seat and Sleep Comfort".

http://www.airlinequality.com/Produc...lat_review.htm