Teddy Bear

I believe it had a character who would have nightmares and maybe sleepwalking (but I'm not sure of the sleepwalking) and he (the mc) ended up bumping into a cop and the cop comforted him so he could sleep again, usually just by listening to the Mc talk about the dreams and maybe drink or eat something together, again I'm unsure of the details on that. But, anyways, they end up getting closer and I'm not sure if he stopped having nightmares for a while or if the cop at the station is the one to disappear first but they end up meeting later on and somehow they end up together I think. Sorry I don't have a lot of details, but omg please help if you can! <3

So, I swear I remember reading this manga/manwha where there's a teacher (I think he's a biology teacher??), another teacher (maybe gym- I don't remember his sorry ToT), and a student (so teach x teach x student); and the bio teacher has glasses- but anyway, both the bio teacher and the student are crushing on the other teacher. They end up as a thruple if I remember right - idk it's been a hot minute. But the two who were crushing had a point where they were messing around trying to get an answer from the main male lead, and they have this discussion about how each of them bring out different expressions or how the mml "blooms" only when both of them are there. And there's an outdoor scene (like in a greenhouse). Idk if any of this rings any bells or not but I'm so confused cause I just haven't been able to find it and I'm gaslighting myself that it never existed lol