Casper Mattresses are designed to provide optimal comfort when paired with any Casper Bed Frame or Adjustable Bed Frame. A firm, supportive foundation ensures the long-term comfort and quality of any foam mattress.
If you prefer to use a different slatted foundation, we recommend using bed slats that are flat, at least 2.5" wide, and spaced no more than 3" apart.
A box spring can otherwise also be used, though our mattresses are designed to be secured by a bed frame that supports them directly, without the added height of a box spring.