Unlike mattresses where you should choose firmness based on your sleeping position, the firmness of your lumbar support ...
she often places two larger throw pillows at each of the two corners where the back of the couch meets the arms. Then, in the third corner (the one in the middle), she places two medium-sized ...
Making a DIY wedge cushion gives you the tools to take care of your back in a practical way. Plus, if you have any leftover fabric, consider re-covering an old throw pillow to refresh your couch ...