After the issue with the poker, Malfoy decided that Hermione would probably try to smother him while he slept. As Hermione had definitely contemplated it, she didn't even blame him when he restrained her the first night and every night since. He used a thin rope to bind her ankle to the bed. She had internally scoffed at the delicate thread until she had discovered that only Malfoy could undo the knot. She seethed every morning as he took his time before he untied her. Even worse, on several occasions, she had had to throw her pillow at his pompous head in the middle of the night so she could pee. 