At the end of the tour, Barbosa asked if he could sleep in the locker room. The 32-year-old just about sleeps at the Warriors’ practice facility, leading Harrison Barnes, Justin Holiday and Brandon Rush in daily competitions that usually last well past the rest of the team being long gone. “He’s one of our leaders, despite the fact that he doesn’t play a ton,” Warriors head coach Steve Kerr said. Barnes seems to have rediscovered the promise he showed during his rookie postseason, Holiday has locked up a guaranteed contract for the rest of the season, and Rush looks healthier after back and knee injuries during training camp. The 6-foot-2, 176-pounder with a 6-10 wingspan had logged 10 “did not play — coach’s decision” lines in boxscores this season, including three in a row from Jan.