Definition: In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.
Input: Sentence 1: Selena averaged 7 hours of sleep every night. Sentence 2: But every morning she'd awake and still not feel rested. Sentence 3: She went to the Doctor who ordered a sleep study test for her. Sentence 4: The sleep study revealed she didn't breathe properly during sleep. Sentence 5: So the Doctor prescribed a cpap machine and she sleeps better now.

C-pap machine