Inadequate sleep hygiene entails the behaviors, practices, rituals, and habits that result in sleep onset or maintenance difficulties and unrefreshing sleep. It is prevalent across all age groups from young children to the elderly. In our present society, we embrace a culture of taking liberties with our sleep in order to get better grades in school, be more productive, or fulfill social or official obligations. This leads to behaviors and habits that then make it difficult to fall asleep or stay asleep through the night. This can result in chronic sleep complaints, as well as daytime fatigue and sleepiness. In addition, poor sleep hygiene has been shown to worsen other comorbid psychiatric and neurologic disorders. Recognition, counseling, and therapeutic strategies can result in increased sleep quantity, improved sleep quality, and improved daytime functioning. In this article, the authors discuss the presentation, impact, and treatment of inadequate sleep hygiene.