Matthew 26:43-45
And he came and found them asleep again: for their eyes were heavy. [44] And he left them, and went away again, and prayed the third time, saying the same words. [45] Then cometh he to his disciples, and saith unto them, Sleep on now, and take your rest: behold, the hour is at hand, and the Son of man is betrayed into the hands of sinners.
Matthew 25:5
While the bridegroom tarried, they all slumbered and slept.
Mark 13:35-36
Watch ye therefore: for ye know not when the master of the house cometh, at even, or at midnight, or at the cockcrowing, or in the morning: [36] Lest coming suddenly he find you sleeping.
Mark 14:37
And he cometh, and findeth them sleeping, and saith unto Peter, Simon, sleepest thou? couldest not thou watch one hour?