Zero

The year is 2229 and Jack Peterson has terminal cancer. He's a dead man walking until his doctor gives him a way out. If he's willing to give up his entire life, he can travel for eight hundred years in stasis to planet Epigog 31 to receive treatment.

The Death of Sleep by Anne McCaffrey

When the space liner on which she is traveling is attacked by the infamous planet pirates, Lunzie Mespil escapes to a lifeboat where she plans to sleep in cryogenic stasis until she is rescued, but she is unaware of how long she will wait.