If you are looking for an adjustable bed and not sure what you need, the Premier is the model where you should start. All the size, mattress types, and accessories Flex-A-Bed offers are available on this model. In addition to the size options, you can even get a split Queen or split King. So if you want to raise your head, but your sleeping partner wants to lie flat – no problem! You can also add massage on both a single bed or even to a split King or Queen.