These pillows are described on Overstock as "luxurious memory foam pillows". However, they are NOT memory foam. What is memory foam? See here: http://*** Memory foam is a viscous, dense synthetic material that conforms to your body kind of like very soft clay. Ordinary foams simply compress, like a wet sponge. Now perhaps you like wet sponges for pillows. If so, fine - to each his own. But if you are looking for memory foam pillows, don't buy these pillows.