Answer: bedbugs

AnswerCrossword Clue
BEDBUGSThey might keep you up
BEDBUGSThey might bite at night
BEDBUGSBloodsucking insects
BEDBUGSBloodsucking hemipterons
BEDBUGSSleeper's woe
BEDBUGSMattress invaders
bedbugsBEDBUG, a bloodsucking insect
bedbugsA bloodsucking bug that is a parasite of birds and mammals