"To improve one's sleep habits" means making changes or adjustments to how you sleep in order to get better quality and more restful sleep. Full definition
These tips can also help improve sleep habits throughout the year! (topresume.com)
In fact, improving sleep habits in your child has been proven to have benefits not only for the child, but for the parents as well! (stronglittlesleepers.com)
«Employers can help employees improve sleep by developing sound policies and offering programs focused on improving sleep habits,» Turgiss writes me. (entrepreneur.com)