A bad combination.
1. My wife has one of those ambient noise machines to help her sleep. It plays ocean sounds, softly, all night long.
I don't mind at all. It's kind of nice.
2. We have an evil cat with long needle-sharp claws. She usually sleeps harmlessly at the foot of the bed, but sometimes she decides to knead body parts with claws out.
I don't like that very much.
3. Last night, before bed, I read Mira Grant's Into the Drowning Deep -- a story about mermaids. Slime covered poisonous predatory inhuman mermaids that bit people's faces off with needle sharp teeth.
It's SF horror. Gore and vicious monsters from the deep.