My teenage brother goes on his computer for a couple of hours every evening. He often doesn't turn it off until after everyone else in the house has gone to bed (10.30/11pm). He then goes downstairs for about half an hour to eat whatever he can find in the cupboards, and then comes upstairs and goes into the bathroom.
Last night I heard him coming upstairs just after 11.30. I heard him go into his room and then I heard the bathroom door closing. He doesn't seem to make any special effort to be quiet. I fell asleep soon after that. I woke up just after 1am because he had flushed the toilet, and the bathroom is next door to my bedroom. He then spent another 35 minutes brushing his teeth, probably shaving, and using the toilet again. I couldn't get back to sleep during this time because I'm a light sleeper and I can hear every time he turns the tap on, moves the basket etc.
My brother does this pretty much every night, and it's really beginning to annoy me. I haven't been sleeping well recently and last night I actually got to sleep before midnight, yet I was woken up at 1am anyway and didn't get back to sleep until 2. I don't understand why he needs to spend an hour and a half sitting on the toilet with his phone. I wish he would go to bed at a reasonable time. He doesn't see the problem because he can sleep in until lunchtime if he wants to, whereas I have to get up and do things in the morning like most people. Aibu?