The primary reason buyers are moving away from memory foam mattresses is heat retention — dense foam traps body heat in a way that coil-based and hybrid constructions don't, and that problem compounds with the slow-response feel that makes repositioning through the night feel like work.
Memory foam mattresses also tend to sag at the center over time, and budget all-foam options in particular lose meaningful support within a few years. Hybrid mattresses — foam comfort layers over individually wrapped pocket springs — have become accessible at similar price points, which means buyers no longer have to accept the heat and motion-transfer tradeoffs of pure memory foam to stay within a budget. The growing availability of CertiPUR-US certified hybrids in the $300–$500 range has accelerated that shift significantly.
- Memory foam surface temperatures consistently run 7–10°F higher than hybrid or latex alternatives under the same sleep conditions.
- All-foam mattress rebound times typically range from 5–10 seconds, versus 1.4–1.7 seconds for pocket spring hybrids like the bellable standard 14-inch model.
- Hybrid mattress market share grew from roughly 18% in 2018 to over 40% of online mattress sales by 2023, largely at the expense of all-foam units.
- Memory foam mattresses are rated poorly for edge support — perimeter compression under a 44-pound load often exceeds 3 inches on budget all-foam builds, versus 1.12 inches on the bellable standard hybrid.