Please do not leave your clothes in the locker room <em><u>over night</u></em><em><u /></em> <em><u> </u></em><em><u /></em>Over night, when referring to the duration of a night, is one word. If we were to keep the spacing in between the words, then we would be talking about the locker room being over the night, which isn't possible XD <em><u> </u></em><em><u /></em>Thank you for your wuestion! I hope this helped! Have an amazing day! :D<em><u> </u></em>
"Over night" should be all one word, "overnight", and there is no punctuation, or proper capitalization, since the sentence is all in caps. Hope this helps!