Selenium Subselect waiting in java

I have 3 select menus depending on each other. Selenium enables you to select a value of a select item but since the menus depend on each other there is a small waiting time between each one. You can have a thread sleeping for one second the time it loads but I want to know how to make the waiting dynamic. The WebDriverWait enables you to wait for an element but not a value of the element.