i went to bed around 9:30, i usually go to bed from around 9-11 (that looks bad as just numbers, help-), depending on how tired i am, but it's usually within that time frame. I used to take a nap almost everyday when i got home from school, but after moving, it seemed to stop, idk what changed lol. As an autistic person who has a lot of sensory issues and doesn't like to have my arms and legs exposed bc i don't want to touch something i don't want to feel, i wear long sleeve pajamas with pajama pants (i don't like pj shorts or gowns bc of this) and if my pj shirt is short sleeved, i wear a hoodie or a jacket to bed, so idk if that has anything to do with it T^T. I'm also one of those people who's never been able to sleep in complete silence or complete darkness, same with my mom. Because our new house is only a two bedroom and my brother moved with us, me and my mom share a bunk bed and she has a lamp on all night and a fan going for white noise, but i also can't sleep with just white noise, so i play my own music not too loud or quiet, but just enough to where i can hear it (i set it as the lowest volume i can hear it)
i just went off of what you said, to see if you noticed anything that could be the problem