Final answer:
Ruth and Sal slept in their sleeping rooms in the forest scene of the Lockton's house, as depicted in the story 'The Veldt'.
Step-by-step explanation:
Ruth and Sal slept in their sleeping rooms at the Lockton's house. In the story, 'The Veldt', George Hadley walks through the forest scene and picks up something that is near where the lions had been. He then walks back to his wife to show her what he found. This suggests that Ruth and Sal's sleeping rooms were located in the forest scene, which is represented in their virtual reality nursery.