You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you're given the title of a five-sentence story and the first four sentences. Your job is to write the last sentence of the story such that it seamlessly connects with the rest of the story.

Title: Marcus Buys Khakis. Sentence 1: Marcus needed clothing for a business casual event. Sentence 2: All of his clothes were either too formal or too casual. Sentence 3: He decided to buy a pair of khakis. Sentence 4: The pair he bought fit him perfectly.
Solution: Marcus was happy to have the right clothes for the event.
Why? Marcus is buying clothes for a business event.

New input: Title: Sleepless Jake. Sentence 1: Jake had to wake up for work in a couple of hours. Sentence 2: He decided to stay up until it was time to go to work. Sentence 3: James made himself a big cup of coffee. Sentence 4: Afterwards he felt energized.
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
He was able to make it through the day despite not getting any sleep.