These 12 airplane beds let you really sleep on a flight

Designed by French luxury yacht designer Jean-Jacques Coste, Singapore Airlines' Suites premiered on the airline's Airbus A380 in 2007.

A decade on, the Suites still rank among the best luxury, lay-flat beds in the sky. Sliding doors close to ensure privacy, and the bed itself is a separate surface from the seat, eliminating lumps and bumps.

In November the airline unveiled an evolution of the Suites and its amenities, nearly doubling personal space in each and introducing amenity kits by French luxury brand Lalique. This design, by yacht and private jet design studio Pierrejean, expands the separate bed and separate seat concept and more closely mirrors a luxury hotel hotel room than an airplane cabin.