4 in.

Does the idea of sleeping on a puffy cloud sound heavenly to you? This two-layer mattress topper adds fluffy fiberfill in a soft quilted cover to cooling gel memory foam for unbeatable comfort combined with gentle, pressure-relieving support. Don’t be surprised if you sleep through your alarm. And did Sleep Innovations mention that the cover is easy to remove and completely washer and dryer safe? Create a luxurious bed for a price you can afford.