Testproject lately is not available over night

Lately team members are no longer to logon overnight. seems Testproject server is shut down or in maintenance mode every time overnight. Question: Is Tricentis actively switching off the Testproject servers overnight, or is there really a need to do maintenance on the server every night. This is kind of important to know, as we do:

  1. want to be able to run automation overnight
  2. have an offshore team that would like to be able to use the tool also.