What are some common signs of sleep apnea?

Loud snoring and daytime fatigue are hallmark signs of sleep apnea. Individuals with this condition often experience disrupted breathing during sleep, which can lead to snoring that may be noticed by others. The interruptions in breathing can result in a fragmented sleep pattern, causing the affected person to feel excessively tired during the day. This daytime fatigue is a direct consequence of the sleep disturbances that prevent adequate restorative sleep, making it a significant indicator of sleep apnea.

In contrast, the other options listed describe symptoms that are more indicative of different sleep disorders or issues. For example, frequent nightmares and anxiety are associated with conditions like PTSD or anxiety disorders rather than sleep apnea. Insomnia and erratic sleep patterns may suggest other sleep disorders, and excessive dreaming and sleepwalking often point to different sleep-related issues altogether. Therefore, loud snoring combined with daytime fatigue is the most characteristic symptom cluster associated with sleep apnea.