Answer: by asking one’s sibling what it is like to have trouble falling asleep
Step-by-step explanation:
Text-to-self connections refers to the personal connections which a reader makes between a piece of reading material and the personal experience of the reader.
Since in the excerpt, the person couldn't sleep, then the reader can make a text-to-self connection for this excerpt by asking one’s sibling what it is like to have trouble falling asleep.