Is it rude to lie down in your seat on a plane?

“So… after a few minutes, I put my seat back down and closed my eyes. Then I caught the flight attendant’s attention to ask me to raise my seat. I put on my headphones, so the next part was that my mother, who was sitting next to me, relayed it to me, and the flight attendant apparently told her that she couldn’t Do anything about it (what was she supposed to do, make everyone in front of her not tilt their seats back)?”

“Then the girl caught the attention of two flight attendants, who all said the same thing and offered the same seat I told her about. The thing is, we were in the window seat, and the girl complained that she had chosen that seat because it was the window seat, so she refused to move, and at the same time, “I pretended to be asleep the whole time.”