How to Pair a Mattress with the Right Bed Frame

Platform vs. box spring

Many modern mattresses are designed for solid or slatted platform foundations. Slats should typically be no more than 2–3 inches apart unless the manufacturer specifies otherwise.

Using the wrong foundation can void warranties and create premature sagging—always check the mattress brand’s requirements.

Storage beds and airflow

Storage beds are brilliant for small U.S. bedrooms, but some hybrids need airflow underneath. If your mattress brand warns against solid platforms without ventilation, choose a design with gaps or a bunkie board approved by the maker.