A nurse is caring for a client who reports difficulty sleeping and has a new diagnosis of sleep apnea. Which of the following statements by the client should the nurse expect?

A. "I have headaches in the evening.": Headaches associated with sleep apnea typically occur in the morning due to nocturnal hypoxia and carbon dioxide retention, not in the evening. Evening headaches are not a common presenting symptom. B. "I feel rested upon wakening.": Clients with sleep apnea often experience non-restorative sleep and wake feeling tired or unrefreshed. Feeling rested upon waking would not be expected in untreated sleep apnea. C. "I feel alert during the day.": Daytime sleepiness is a hallmark symptom of sleep apnea due to fragmented sleep and oxygen desaturation. Feeling alert would not align with the typical presentation. D. "My spouse says I snore.": Loud, habitual snoring is a common and expected symptom of obstructive sleep apnea. It is often reported by bed partners and is an important clinical clue for diagnosis.