The quilt always falls off the bed, and a chair can't stop it. What else can I do?

Take two ropes and tie the two quilt corners on the left side of the quilt (according to people's habits) to the bedside. If there is no column rope at the bedside, pull it to the bottom of the bed. It's convenient and quick, and it doesn't cost anything. The right side can be lifted, but it won't fall off anyway. You can also fold the quilt by mistake!