What is Memory Foam? Facts (Pros & Cons)

What is Memory Foam? Facts (Pros & Cons)

Memory foam has revolutionized the sleep industry since its introduction in the 1960s. In this blog, we're going to dissect what memory foam is and discuss its advantages and potential drawbacks.

Unraveling Memory Foam: What Is It?

Memory foam is a type of viscoelastic polyurethane foam known for its ability to conform to the body. It was initially developed by NASA to improve seat cushioning and crash protection for airline pilots and passengers.

The Unique Qualities of Memory Foam

Memory foam is heat sensitive and responds to the body's temperature and weight. It softens under warmth, allowing it to mold to the body in response to heat and pressure. This leads to even weight distribution across the surface, reducing pressure points and enhancing comfort.

The Pros of Memory Foam

Memory foam presents several advantages that contribute to its popularity in the bedding industry.

Superior Comfort and Support

Memory foam's conforming ability provides personalized support, adapting to the sleeper's body shape to offer optimal spinal alignment and pressure relief. This can lead to reduced discomfort and improved sleep quality.

Excellent Motion Isolation

Memory foam is renowned for its motion isolation capabilities. The material absorbs movement and prevents it from transferring across the surface, making it an excellent choice for those who share a bed.


Unlike innerspring mattresses, memory foam mattresses don't have coils that can squeak or creak over time. This makes them virtually silent when bearing weight.

The Cons of Memory Foam

While memory foam has many advantages, there are also a few potential downsides to consider.

Heat Retention

Memory foam's density can trap body heat, causing discomfort for some sleepers, particularly those who naturally sleep hot. However, many modern memory foam mattresses incorporate cooling technologies, such as gel infusions, to help combat this issue.


New memory foam mattresses may emit a chemical odor, a process known as off-gassing. While typically harmless, the smell can be bothersome to some individuals, though it generally dissipates within a few days.

Sinkage and Slow Response Time

Memory foam mattresses can sometimes cause a "sinking" feeling, due to their high conformity. They also tend to respond slowly to changes in pressure, which may cause difficulty for those who change positions frequently during sleep.


Memory foam, with its pressure-relieving properties and motion isolation, offers enhanced comfort and a silent night's sleep. However, aspects like heat retention, off-gassing, and sinkage might make some consumers think twice. As always, when choosing a mattress, it's vital to consider these pros and cons in light of personal comfort preferences and sleep habits.


Index of Materials

 Bamboo Infused


 Open Coil

 Pocket Spring


 Coil Spring


 Bonnell Spring





 Reflex Foam


 Pillow Top

 Egg Crate Foam

 Visco Elastic Foam

 High Resilience Foam

 High Density Foam

 Polyurethane Foam