Plugged the Dap Diffuser in a week ago by their beds downstairs (except Lily who has moved in upstairs ) and have now moved it into our bedroom for tonight and I will also give them all three drops of Valerian organic compound on a Fish4Dogs treat around 10.00 pm ,and hope that it helps to clam them when the fireworks start at midnight .The Valerian seems to help them but not over sure about the Dap ,anybody use any other stuff to help them keep a bit calmer on firework nights ,thankfully its only twice a year .