What percentage of kids still wet the bed at least once a week at age 10 years?

Small percent. Bed wetting in children is quite common. 5-6 years of age 20-25 % of children still bed wetting, and of those that bed wet 20% plus stop on their own every year. There are some things that can help including medicine but i would talk with your pediatrician so they can find what if anything can be done for your child.