Am I Sleepwalking? Sleep Disorders in Teens - Psychiatry

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Based on your description, it does sound like you may be experiencing episodes of sleepwalking or related sleep disorders. Sleepwalking, also known as somnambulism, is a type of parasomnia, which is a disorder characterized by abnormal or unusual behavior during sleep. It typically occurs during the non-REM (NREM) stages of sleep, particularly in the first third of the night.
Your experiences of sitting up in bed, engaging in conversations that lack coherence, and then having no recollection of these events the next day are indicative of sleepwalking. It's not uncommon for individuals to engage in simple tasks or conversations while in this state, but they usually do not remember these actions upon waking. The fact that you have been observed sitting up and responding to your sister, albeit incoherently, aligns with typical sleepwalking behavior.

Additionally, your episodes of talking in your sleep and calling out during nightmares suggest that you may also be experiencing other sleep-related issues, such as REM sleep behavior disorder (RBD) or night terrors. RBD involves acting out dreams, often resulting in physical movements or vocalizations during REM sleep, which can be distressing for both the individual and their bed partner. Night terrors, on the other hand, typically occur during deep sleep and can involve screaming, thrashing, or intense fear, with little to no memory of the event afterward.

It's important to note that sleepwalking and other sleep disorders can be influenced by various factors, including stress, sleep deprivation, irregular sleep schedules, and even certain medications. Given that you mentioned these episodes have occurred during your late teenage years, it's possible that the stress of school, social dynamics, or other life changes could be contributing to your sleep disturbances.

While sleepwalking is more common in children, it can persist into adolescence and adulthood. The fact that you are experiencing these episodes at 16 and 17 years old does not rule out the possibility of sleepwalking; it simply means that it is less common but still possible.

If these episodes are frequent, disruptive, or causing you distress, it would be advisable to consult a healthcare professional, preferably a sleep specialist. They may recommend a sleep study (polysomnography) to monitor your sleep patterns and behaviors, which can help in diagnosing any underlying sleep disorders. Treatment options may include lifestyle changes, improving sleep hygiene, managing stress, and in some cases, medication.

In the meantime, consider keeping a sleep diary to track your sleep patterns, any stressors you may be experiencing, and the frequency of these episodes. This information can be valuable for your healthcare provider in understanding your situation better.

In summary, while it does sound like you may be experiencing sleepwalking or related sleep disturbances, seeking professional guidance is crucial for proper diagnosis and management. Sleep is essential for overall health, and addressing these issues can significantly improve your quality of life.