The answer to that question relies entirely on your imagination. We have the story as it was presented to us by the author. The rest is up to you. If you'd like, you can write your own fanfiction ending to the story, and it can be anything you want it to be.
Slaves of Sleep has 206 pages.
Newtons Sleep has 288 pages.
Hot Sleep has 309 pages.
Troubled Sleep has 432 pages.
Fields of Sleep has 288 pages.
Yellow Men Sleep has 343 pages.
Sleep No More - anthology - has 374 pages.
Dr. Seuss's Sleep Book has 56 pages.
While Mortals Sleep - book - has 272 pages.
The Never War has 352 pages.
Never Sorry has 272 pages.
How Soon Is Never has 400 pages.