This year we are taking our year 6 class (37 kids) to London and are staying the night in a hotel with them. We have ran this trip every year since 2014. I am the lead teacher but this year following various meetings with the head he has informed us that we need to improve how we supervise the children at night in the hotel. The Head has not suggested how. How can we supervise them when they are all in their hotel rooms at night?