Mattresses and bed frames follow standardized dimensions. Always match these sizes exactly. Please refer to the bed dimensions chart above for detailed information

Low-Profile Frames (e.g., platform beds): Work with mattresses 4–14" thick; Ensure slats are ≤3" apart (critical for foam mattresses to prevent sagging).
Traditional Frames (with box spring): Mattress + box spring height should align with frame rails; Standard box springs are 9" tall; low-profile options are 5–6".

Slatted Bases: Slats must be ≤3" apart for memory foam/latex (prevents sagging); Use reinforced center legs for Queen/King sizes (prevents mid-bed dip).
Adjustable Bases: Verify mattress compatibility (e.g., flexible foam, latex, or hybrid – avoid rigid innersprings).
Box Springs: Only use with innate innerspring mattresses (not foam/latex).

Non-Standard Mattresses (e.g., deep pillow-top, 16"+ thickness): Check bed frame’s maximum mattress height (listed in specs); Ensure side rails are tall enough to prevent sliding.
Bunk Beds/Trundles: Use Twin or Twin XL only – thickness ≤10" for safety clearance.
Murphy/Wall Beds: Requires specific mattress thickness (usually ≤12") to fit flush when folded.
RV/Camper Beds: Often "Short Queen" (60"×75") or custom sizes – measure before buying.

Gaps: Mattress should fit snugly – ≤1" gap on any side (critical for child safety).
Center Support: Queen/King frames must have a center support leg/bar.
Weight Limits: Confirm frame supports combined weight of mattress + sleepers (e.g., King foam mattress + two adults = 600–900+ lbs).

Always measure both your mattress and bed frame – even "standard" sizes vary by brand. When in doubt, consult the manufacturer’s guidelines for both products. A perfect match ensures better sleep, prevents injuries, and extends mattress life!