Final answer:
Based on the evidence from the story, it is unlikely that Will will be able to sleep better now that he knows the cause of the noises in the attic.
Step-by-step explanation:
Based on the evidence from the story, it is unlikely that Will will be able to sleep better now that he knows the cause of the noises in the attic. In the story, the character experiences restlessness and discomfort during the night due to various noises. This suggests that even if the cause of the noises is known, it may not necessarily lead to better sleep. For example, in the story, McTeague knows the cause of the noise in his room but still struggles to sleep well at night. Therefore, knowing the cause of the noises may not necessarily lead to improved sleep.