Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: Is it really gone ? " Then the fatigue hit me and I slept . I woke up in the evening kind of chipper and wondered if I would be able to sleep the night . Sure enough midnight roles around and I found myself sleeping .

Question: Why does the narrator suddenly have more energy ?
They took a nap .
The narrator wakes up feeling chipper.