I struggle with sleeping at night but tired during the day : (?

Many possibilities . Are you stressed and think a lot at night that keeps you thinking and from sleeping? Do you exercise at night? Do you drink alcohol at night? Do you nap during the day? Is your room too hot? Too noisy? All these things can interfere with sleep and make you tired in the day. Just because you are tired if your brain is in high gear you won't be able to sleep!