A Queens-bound bus driver who crashed, injuring 23 passengers, on I-95 after leaving Foxwoods Casino may have fallen asleep at the wheel, cops said yesterday.

“It’s one possibility,” said State Police Sgt. John Maasz, who cited rain-slicked roads and speed as other possible factors in the early-morning July 4 accident near Exit 16 in New Rochelle.

The driver, Wei Chen, suffered a head injury and claims he can’t recall what happened.