Your mattress needs to lay flat on a supportive surface to avoid damage and to ensure it feels good when sleeping on it.
If you have a platform bed or a bed with slats that is supportive enough, you can rest your mattress directly on top.
You can use a box spring if you require additional height. A box spring can lay on the floor or on top of a bed frame.
By using a bed frame, you will elevate your mattress off the ground which makes it easier to get in and out of bed. It will also provide additional air circulation under your mattress to help you sleep cooler at night!
For more information on bed frames, box springs, and platform beds visit our blog: https://www.nationalmattress.ca/bed-frame-vs-box-spring-vs-platform-bed