The Create-a-King is a neat little bedroom problem solver that you can use to turn two twin beds into a king size bed. The Create-a-King straps around your two twin mattresses, holding them together tightly, so they can’t scoot apart. But what about the crack between the two mattresses? The Create-a-King has a sheep skin center piece that covers and masks the crack between the two mattresses. We have tried this in our store and it is also helpful to get a high quality mattress pad to go on top of the Create-a-King and mattresses to further cover up the crack between the two mattresses. You can use the Create-a-king to connect two twin beds or two twin extra long beds.