So freaking selfish. My ex used to do this. He'd watch tv til all hours of the night. He didn't have to get up for work, I did. I used ear plugs and an eye mask but was still bothered by it as I'm a light sleeper.
I told him so many times but he didn't give a sh!t which was symptomatic of our relationship he was a selfish, disrespectful a-hole about everything. I hope this isn't the case in your relationship.
I'd be having a serious talk about how much this is affecting you. Sleep is so important.