Lufthansa's new "Allegris" first-class cabin sports a double bed, shown in a rendering.LufthansaLufthansa is launching its new "Allegris" cabin on Airbus A350 planes starting in May.Allegris represents a new era of comfort for Lufthansa and will initially serve Canada and the US.The double bed-equipped first class suite will not deploy until late 2024 due to supplier delays.After seven years of developments, Germany's flag carrier is finally launching a long-overdue cabin upgrade.On Sunday, Lufthansa Airlines CEO Jens Ritter announced on LinkedIn the delivery of the airline's first-ever Allegris-equipped airplane — an Airbus A350, registered D-AIXT and nicknamed Leipzig.The airline said it would start flying the A350 and Allegris on select flights to North America in May, first to Vancouver and then to Toronto.While we wait for LH9851 to touch down at @MUC_Airport, here is a special fact about today's ferry flight: this flight is operated with 17 % Sustainable Aviation Fuel!