Tá mo sheomra leapa féin agam. Tá mo sheomra leapa thuas staighre.
I have my own bedroom. My bedroom is upstairs.
I believe some people were worried about this and thought it should be seomra leaba. You would think it would be seomra leaba, but the genitive of leaba is leapa - in other words, when you want to say "of a bed", you use leapa instead. It's like "an tí" for "of the house. You don't say "bean an teach" for woman of the house, you say "bean an tí" instead. It's just one of the things that you have to learn, but it's not as difficult as it looks. Mostly you just pick these things up as you go along.