Memory Foam Mattress Toppers Tips: If your current mattress is in good condition but just firmer than you would like, you may have a little trouble sleeping because of pressure points. Or you may be looking something that is a little softer or luxurious. In this case, you might want to investigate memory foam topper pad. Added to a firm mattress in good condition, a memory form topper can help mold the sleeping surface to you while making it more comfortable and luxurious feeling. However, a memory foam mattress topper pad will add support for a matress that is sagging, compressed or in poor condition.