The most effective additional detail to add to paragraph 3 would be: "A few residents have complained that their health has been affected by being woken at night by loud noises."
This detail strengthens the argument in favor of the noise ordinance by providing evidence that excessive noise not only disturbs sleep but may also have negative health implications for residents. It highlights the importance of a peaceful environment during nighttime hours and lends further support to the claim that the ordinance would benefit the community.