I have my own sewing room!!! It's not very big, and it has its issues, but it is just for me and it has a door!!!!
Our home has 2 bedrooms on the second story. One is quite small and the other is very large and has the only heating/cooling vent for the 2nd story. When we first moved in last fall we made the smaller one the kids' toy room and the larger their bedroom. This spring they split up and each had toys in their rooms. Well, they want to share again (which they were going to have to soon anyways with winter coming). They now have bunk beds so they have enough space for all their toys in their bedroom leaving the other for me!!! It will be a bit cold this winter, but there is an electric baseboard heater I can use when I'm in there.
I have been busy trying to get my stuff situated in there. Like I said, it has its problems (poor lighting, dark paint color, half walls on the sides, very small, no heating/cooling vent), but it is a long way from where I was before we moved here a year ago. I was sewing at the kitchen table, and storing my machine, projects and supplies in 3 different closets and under my bed. And then after our move, everything was in one room, but it had to be put back in my storage cabinet and my machines covered or in their cabinet when I was done. I can now just leave everything as it is and just close the door on my way out!!! What a nice feeling. This will help greatly with the kitten. When she is being too 'helpful' I will now be able to close her out until I'm done cutting or pressing. The first thing she learned was my chair is a good place for a nap, now she is starting to learn to avoid my ironing board so we are getting there.