Sleepiness in sleepwalking and sleep terrors: a higher sleep pressure?

Almost 46.8% of adults with sleepwalking or sleep terrors reported excessive daytime sleepiness.

• Excessive daytime sleepiness is defined as an Epworth Sleepiness Scale score greater than 10.
• Patients with excessive daytime sleepiness had shorter sleep onset latencies and REM sleep latencies, along with longer total sleep time and higher REM sleep percentages during the second night of monitoring.
• Sleepiness levels correlated with shorter sleep onset latency, REM sleep onset latency, total sleep time during night 2, and latency to deep sleep (N3).
• Factors contributing to higher sleepiness included shorter sleep onset latency on the first night, fewer awakenings during deep sleep on the first night, and longer total sleep time on the second night.
• Daytime sleepiness is linked to a specific sleep pattern rather than disturbed sleep, indicating a possible higher sleep pressure.

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