What are some common symptoms of sleep disorders?

The symptoms of sleep disorders often manifest as difficulties in maintaining healthy sleep patterns and can include a range of issues. Difficulty falling asleep and excessive daytime sleepiness are common indicators of sleep disorders because they signify that the body's natural sleep-wake cycle is disrupted. This could be due to various factors including stress, environmental conditions, or underlying medical issues.

In contrast, the choices that mention constant happiness and energy, regular and uninterrupted sleep patterns, and improved mental focus and clarity do not align with the typical symptoms associated with sleep disorders. In fact, those conditions represent the opposite of what individuals with sleep issues often experience. Thus, the presence of difficulty falling asleep and excessive daytime sleepiness accurately highlights the challenges faced by those with sleep disorders, making it the right choice.