A box spring is not necessary for a Purple mattress. Instead, you can use a platform bed, adjustable bed, or even place the mattress on the floor. But, make sure the surface is flat and sturdy to prevent sagging and check the warranty and care instructions for suitable support systems.
Platform beds offer a low profile and modern look, while adjustable beds allow you to customize your sleeping position and improve your overall sleep experience. If switching from a different mattress to a Purple mattress, make sure your box spring is in good condition and suitable for use.
In summary, choose a sturdy and flat support system that won't damage the mattress or void the warranty. Consider using a platform bed or adjustable bed for added benefits and customization options. A new mattress can improve your sleep quality and overall health, so it may be worth investing in one if your current mattress is old or uncomfortable.