hi there, we are so lucky that my parents have paid for a holiday cottage for us and our 2 s.n boys and my daughter this easter....my 4 year old is very severley autistic with a developmental age of 6/9 months and at home he sleeps in a safe space. We are going to put the matress on the floor of his single room on holiday, remove everything and pad the room out with pillows and blankets but I am at a loss as to what to do with the window as he loves banging windows. can anyone think of, or does anyone know a way of covering a window securley, but temporarily with no damage???? thanks in advance and happy evening to you