Create a detailed image representing the concept of good sleep hygiene in the context of middle schoolers. Show middle schoolers of various descents, both male and female, participating in activities promoting good sleep hygiene such as maintaining a steady sleep schedule, avoiding electronic devices before bedtime, and sleeping in a dark, quiet, and clean environment. Emphasize the positivity and importance of these habits through use of vibrant colors and relaxed expressions on the students' faces.

Use the excerpt to answer the question.

Good sleep hygiene, the behaviors that promote good sleep, will help ensure that middle schoolers get enough sleep.

How does the author develop the key concept in this sentence?

The author develops the key concept in this sentence by discussing the importance of good sleep hygiene for middle schoolers in order to ensure they get enough sleep.

The author develops the key concept in this sentence by introducing the idea of "good sleep hygiene" as the behaviors that promote good sleep. This indicates that the author will further explain what constitutes good sleep hygiene and how it can help ensure that middle schoolers get enough sleep. To fully answer the question, we would need to analyze the rest of the excerpt or the context in which it appears.

In this sentence, the author develops the key concept of "good sleep hygiene" by explaining that it refers to the behaviors that promote good sleep. The author suggests that practicing good sleep hygiene will help ensure that middle schoolers get enough sleep.