Super rare card

Slow-wave sleep

Value

200 W

Attack

836

Defence

669

Players

0

Slow-wave sleep (SWS), often referred to as deep sleep, is the third stage of non-rapid eye movement sleep (NREM), where electroencephalography activity is characterised by slow delta waves. Slow-wave sleep usually lasts between 70 and 90 minutes, taking place during the first hours of the night.

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