These two voices were still speaking when sleep overcame me.

"Poor baby," was the last thing Rory said as sleep overcame him.

As sleep overcame him, he thought how sweet never waking up would be.

A sleep, such as that which ends our mortal existence, overcame my senses.

But each time just as sleep would overcome him, it would be his turn to take tip a paddle.

At some point in the exercise, sleep overcame him.

I was not yet all the way horizontal when sleep overcame me.

I was still doing it as sleep overcame me.

I got halfway through the book before sleep overcame me.