Waking closed lid macbooks using wireless

We have carts of MacBooks and MacBook Pros that students use and close the lid and put them back in cart when they are done. They use wireless networking and don't have USB or displays connected. I am wondering if there is any way we can wake the MacBook remotely using wireless (WoWLAN?). We don't want to have the setting where MacBook doesn't sleep when lid is closed. Is there any way we can wake them on and have them connect to our wireless when their lid is closed? The remote management software we use couldn't work when they are in the cart overnight.