Singapore Airlines now has first-class, fully flat double beds in “Suites,” which could put it in the lead for helping passengers fly in comfort.

Double beds, lounges and showers: The incredible cabins of the airlines voted the five best in the world READ MORE: Inside Virgin Atlantic's 'secret-level' £2,140 business-class seat By TED ...

Qatar Airways has a new business class that should blow the competition out of the water. In some configurations the seats can also form a double bed or a private meeting space.