https://law.lis.virginia.gov/admincode/title22/agency40/chapter185/section380/#:~:text=Sleep%20or%20rest.-,a.,may%20engage%20in%20quiet%20activities.
Its required that they have at least a designated hour for nap time at centers. At my sons school they do not wear masks while they eat or during nap time. Teachers continue to wear masks at all times and all teachers are tested each week for Covid, with students being test every other week (50% of students each week. Required for students 3 and older and by parent choice for younger.)