1. A curse or wish expressing that someone will be disturbed or plagued by nightmares, bad dreams, or restless sleep; an expression of malice toward another person
May nightmares torment you in your sleep
Que te atormentem no sono todas as noites
2. A literary or poetic expression of wishing suffering upon someone during their vulnerable state of sleep
The witch cursed him saying 'May demons torment you in your sleep'
A bruxa o amaldiçoou dizendo 'Que te atormentem no sono'