Offers better pressure relief and longevity, though it can feel much firmer initially. 2. Heat Retention
Standard memory foam is a known heat-trapper because it uses your body heat to soften and "mold" to your shape. If you tend to sleep hot, look for cooling technologies: what to know when buying a memory foam mattress
Firmness is how the mattress supports your spine; "feel" is how the top layer reacts to your weight. Offers better pressure relief and longevity, though it
Not all memory foam is created equal. Density is measured in pounds per cubic foot (PCF) and is the biggest indicator of quality and durability. Offers better pressure relief and longevity