Any way to stop the dumb monster under the bed from wakeing up m kids every night?

I thought befriending the monster would do the trick but now it just wakes them up every night to play. The kids are failing school from going in tired all the time and then they crash and sleep the whole evening away instead of doing their homework. Its a nightmare. The lamps don't work either! or that nightmare eater poster thing either. I try not to use mods to cheat (except for the faster promotions one so that I can play on short lifespan) but I'm tempted to start hunting for a no more monsters mod.

@ChloeDeCookie gah! Everyone keeps telling me about the double beds and I keep on forgetting! Thanks for reminding me! <3