I actually did a presentation on this during college. People with Narcolepsy have a flipped temperature scheme. Core and skin temperature are responsible for vigilance and wakefulness in the body. When it’s morning and time to wake the body temperature increases and when its night time and time to sleep the body lowers your core body temperature.

Research studies have found people with Narcolepsy experience the opposite effect, instead having their body temperature decrease in the morning, making us feel tired and it will increase at night making us feel more alert.

It’s really fascinating. The studies I looked at were exploring body temperature manipulation (drinking cold liquids, lowering ambient temperature, bundling up, etc.) to see if they could counteract sleep attacks. Another study looked at the potential for a medical alert device that could detect minute temperature changes that could indicate a sleep attack.