Answer: nightmares

AnswerCrossword Clue
NIGHTMARESWhat horses keep late hours?
NIGHTMARESNocturnal phenomena.
NIGHTMARESFrightening experiences
NIGHTMARESFemale equines that run after dark?
NIGHTMARESScary experiences
NIGHTMARESSleep clinic topic
NIGHTMARESUnpleasant experiences
NIGHTMARESNocturnal females?
nightmaresA frightening or unpleasant dream
nightmaresNIGHTMARE, a bad dream
nightmaresA terrifying or very unpleasant experience or prospect
nightmaresA person, thing, or situation that is very difficult to deal with