Sentence 1: Fred had a bad sleeping schedule. 
 Sentence 3: He began to sleep 5 hours later each night 
 Sentence 4:  After grueling nights, he accomplished this 
 Sentence 5:  He was able to get his sleep schedule back on track 
 Option 1: He loved staying up late but his new job needs him to get up earlier. 
 Option 2: He wanted to sleep earlier.