Song of Solomon 3:7,8 has Solomon so terrified of the "night" that he has 60 valient men with swords drawn circle his bed each night. The book has shown to be a reworked fertility goddess poem in other threads. The passage here seems to be betraying the superstition of night demons/monsters that roamed around slaying folks in their sleep. Jewish tradition had accepted this superstition as shown in the Pesachim, 112b:
"Do not go out at night. Not on Wednesday night or on Sabbath night, because Igrath (Agrat) the daughter of Mahalath (Machalat) along with 180,000 destroying angels are out, each with permission to cause destruction independently."
They are called ruchin, shedin, lilin, tiharim