How does the mat on the sofa go down all the time?
In the above a layer of cloth pad Simmons of older sheets, four stuffed in the mattress, like a hotel bed, this method is very useful, my family is one such solution.
Give you some advice, because I am a sofa when we design the general designer, if there will be such a problem will add a magic stick above, and in the back of the sofa cushion, also your cloth also added, and such a rise would not be such a problem,
Put a thicker mattress under the mat to increase the rubbing strength
