Also out of curiosity....does anyone know if you can get a woody while in a coma .
YES. It well documented.
https://academic.oup.com/sleep/article-pdf/23/7/1/24378110/230711.pdf
In the more advanced stage of coma, these elementary gestures are often centered upon the genitals, resulting in erection in the male.” Our findings were similar to those in normal adult males. The 95% rate of association of SREe's with REM sleep is close to the 91.4% rate reported by Karacan et al. SRE is Sleep Related Erection and REM is Rapid Eyes Movement a specific state of sleeping.
Nocturnal penile tumescence is a spontaneous
erection of the
penis during
sleep or when waking up. Along with
nocturnal clitoral tumescence, it is also known as
sleep-related erection. (Colloquially, the term
morning wood (or less commonly,
morning glory) is also used,
[1] although this is more commonly used to refer specifically to an erection
beginning during sleep and persisting into the period just after waking.) Men without physiological
erectile dysfunction or severe depression
[2] experience nocturnal penile tumescence, usually three to five times during a period of sleep, typically during
rapid eye movement sleep.
[3] Nocturnal penile tumescence is believed to contribute to penile health.
[4]
In a study published in 1972,
[11] during puberty, the average tumescence time per night was 159 min; average REM sleep time was 137 min. Average simultaneous REM sleep and penile tumescence per night was 102 min. Study subjects averaged 6.85 tumescence episodes/night, and, of these, 5.15 occurred during a REM sleep period. Tumescence episodes during REM averaged 30.8 min in duration, whereas episodes which occurred when no REM was present averaged 11.75 min. Study subjects had at least four REM periods per night and at least three tumescence episodes.
Full article here:
https://en.wikipedia.org/wiki/Nocturnal_penile_tumescence