[Hammock Parties]

Yes but only mild.

Sleep paralysis is the explanation for why people believed in the succubus, demons, ghosts and today, alien abduction.


https://www.livescience.com/56422-sl...-cultures.html

In certain parts of Brazil, for example, there are folkloric tales of a creature with long fingernails that lurks on people's rooftops during the night. The creature, called "Pisadeira," comes into a person's house and tramples on the chests of those who sleep, according to the review. [7 Mind-Bending Facts About Dreams]

Catalonia, a region in Spain, has the tale of the "Pesanta," a black animal, often a dog or a cat, that invades people's homes and sits on their chests while they are asleep, making it difficult to breathe and causing nightmares, the authors wrote.

In Newfoundland, Canada, it's the "Old Hag" that comes and sits on a sleeping person. And among an ethnic group in Vietnam and Laos, a "pressing spirit" sits on sleepers' chests and tries to asphyxiate them, the researchers found.

The idea of a weight holding someone down is also reflected in the terminology used in Mexico to describe sleep paralysis, according to the review. Translated from Spanish, the phrase means "a dead body climbed on top of me."

Some cultures use tales of spells cast by shamans or summoners to explain sleep paralysis.