Long time lurker and first time poster here. Using a throwaway account, because I don’t want emotional baggage on my main.

So I 27F live in work in another city, but I get work from home from time to time and I come back to my parent’s house for a month or sometimes longer. On an average I probably spend around 4 to 5 months a year at my parent’s house.

My brother 32M had a baby six months ago. Our our house is of three floors. My dad stays on the ground floor. Me and my mom have one room each on the first floor along with the kitchen. And my brother and his wife and her baby have living room plus a bedroom on the top floor.

Since I’ve been back my room is not taken over by my sister-in-law and the baby, which I don’t mind because I sleep with my mother, anyways. So I only used that room as my office, which i don’t/can’t anymore.

I have a big interview coming up next week for which i have been studying since last 2 months. Since there’s a lot of hustle and bustle in the daytime i prefer to study at night, my brother’s family usually goes back upstairs around 10 PM. So i get my room back for a good solid 4 hours prep everyday. I sleep around 2AM-3AM.

Every morning since the last 20 days that I’ve been here, either my dad or my brother would barge in at 7:30 Am around into my mom’s room and disturb my sleep. Sometimes if i am up my brother will leave his baby to me, and go back to sleep upstairs.

My dad also barges into my mom’s room (my mom works, dad’s retired) during my work hours with the baby.

I am very annoyed by this and i told my mom that i will go back sooner than planned because I don’t get to sleep. I also talked to my brother and told him he doesn’t let me sleep in the morning, to which he denied and said he never disturbs my sleep 😐

This morning:

My brother as usual, came in with his baby at 7:39 AM and asked me to move. Idk where; i was already at my side of the bed. I told him not to bring his baby here and let me sleep. But he just won’t listen.

I told him he disturbs my sleep everyday. His reaction was- so what. I don’t remember what he said exactly, but i am furious, i go to the kitchen to my mom (& SIL) and yelled, ‘mom, this man doesn’t let me sleep, I already gave up my room’ to which my mom confronted my brother, me & my brother exchanged some words. I tried to explain that i study at night, he said so don’t study(he’s incapable of empathy, it’s a fact). Everyone has to adjust for the baby, even we are doing it.

My mom shut the door as my bro and his baby left. I could hear my brother scream and shout outside. He was telling my SIL to empty my room. And later didn’t let me touch his baby saying, ‘his baby is ruining my career so I should stay away from the baby’. He has the EQ of a squirrel. I am planning on reasoning it out with my sister in law cause she’s mature.

I could have handled this in a calmer manner probably. But 5 hours of sleep can do this to a person. So AITAH ?

Didn’t realise I wrote this much lol. TL;DR Gave up my room to my brother’s 6mo baby. Brother disturbs my sleep every morning in another room. I snapped at him.