don't listen to the troll. search through Qatar airways website, they will have more information regarding hotel room for longer transit. You will have to pay around $150 for an overnight stay. Last time I went I slept at the area inside the airport where there were longer seats arranged for travelers to sleep or take rest. There were many people sleeping in that area. It is near the coffee shop and dutyfree store on the upper floor.
Have a safe journey back home, and have a good time with your family, hope they are safe.