Travelers say Qatar Airways has the best business class, thanks to its QSuite with sliding doors and double beds: See inside

• Skytrax has named Qatar Airways the world's best airline for business class for nearly a decade.
• Introduced in 2017, the QSuite sports industry-first double beds and fan-favorite sliding doors.
• Qatar is expected to unveil an updated "QSuite 2.0" later this year.

Every year, the aviation ranking website Skytrax compiles and analyzes thousands of customer satisfaction surveys to determine the best of the best among some 350 airlines.