This is our third Serta Perfect Sleeper but first hybrid. We recently upgraded to a King Size bedframe and were searching for a new mattress. After the searching local mattress stores with no luck we decided to try buying online. We are pleased so far with our purchase. Delivery was quick. We are sleeping well so far. There is little movement with the mattress when I get in after my husband is asleep. It's the perfect amount of cushion for us.