In the event the siren is heard, find shelter fast. In the case for our family, our 1.5 year old's room doubles as a security room. Its like a bomb shelter with extra thick walls, a large steel plate covering the window, special ventilation, and a steel door. We moved our bed into the shelter last week in case we didn't wake up in the middle of the night from the siren.
For more information, visit the IDF home front instructional video.How to behave in a Qassam Rocket or Mortar Attack