Morning wood

Morning wood is an informal term for a morning erection, for which the technical medical term is "nocturnal penile tumescence". It means an erection that a man sometimes has while asleep or right after waking up. Men who do not have erectile dysfunction can experience this sensation. It usually happens during Rapid Eye Movement sleep.^[1]^[2] Other slang terms include "morning glory" and "morning tent".

References

↑ Tests for Erection Problems". WebMD, Inc.
↑ Bancroft, J. (2005). "The endocrinology of sexual arousal," Journal of Endocrinology,

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[1] Tests for Erection Problems". WebMD, Inc.

[2] Bancroft, J. (2005). "The endocrinology of sexual arousal," Journal of Endocrinology,

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