YOU SAID:
well we're having a sleepover at my house
INTO JAPANESE
私たちの家には寝泊まりがあります
BACK INTO ENGLISH
We have sleeping in our house
INTO JAPANESE
私たちは私たちの家で寝ています
BACK INTO ENGLISH
We are sleeping at our house
INTO JAPANESE
私たちは私たちの家で寝ています
BACK INTO ENGLISH
We are sleeping at our house
Come on, you can do better than that.