A platform bed and a traditional bed frame with a box spring differ in their support systems. A platform bed features a built-in structure, such as slats or a solid surface, eliminating the need for a box spring. This setup provides a modern, lower profile. In contrast, a traditional bed frame supports a box spring, which then supports the mattress, adding height and offering shock absorption, especially for spring mattresses. For added savings, consider a zinus discount when choosing the best option for your bedroom setup.