Do pilots sleep on planes?

Typically, short distance sectors are manned by two pilots, while long-haul flights can have three or four pilots. One of the two pilots manning the cockpit is allowed to take rest or sleep inside the cockpit by sliding the seat back and locking the harness. This practice is known as “controlled rest”. 19-Aug-2022

https://www.business-standard.com/article/current-affairs/can-your-pilot-go-off-to-sleep-in-the-cockpit-midair-yes-but-122081901131_1.html#:~:text=Typically%2C%20short%20distance%20sectors%20are,known%20as%20%E2%80%9Ccontrolled%20rest%E2%80%9D.