These 12 airplane beds let you really sleep on a flight

For business travelers, getting rest on a lengthy international flight is a must; on shorter flights, it's a treat.

JetBlue's Mint cabin, an arrangement of premium seats at the front of select Airbus A321 aircraft, offer that opportunity on domestic flights across the United States, or from the east coast to the Caribbean.

Boasting the longest fully lie-flat seat (six feet, eight inches) on a domestic premium flight, the Mint seats feature adjustable firmness and built-in massage. Four solo "suites" of the 20 seats feature sliding privacy doors. Pillows, a plush duvet and a turndown treat complete the setup.