Analysis of Monsters at night

The sun goes down, I know what that means. No lullabies sung and no sweet dreams.
The music is loud, the voices they chatter. I'm just a small child but that doesn't matter.
Hidden under my sheets, I close my eyes tight. I pray that the monsters don't hurt me tonight.
Then the door makes a creak, he enters my room. I lay frozen in fear, upon my makeshift tomb.
I know the routine, I brace for the pain. The feeling of shame bounces round in my brain.
It feels like forever but as soon as he's done, he whispers so gently, "I had so much fun".
He tells me to remember, that I can't say a word. No one would believe me, my voice left unheard.
So I kept our little secret, too tired for the fight, to prove my youth was stolen, by the monsters at night.