Memory foam is a type of viscoelastic foam that was originally developed by NASA in the 1960s for use in airplane seats to enhance comfort and safety during flights. It's composed of polyurethane with additional chemicals that increase its viscosity and density. Memory foam is known for its ability to contour to the shape of the body when pressure and heat are applied, providing customized support and alleviating pressure points.

• Conforming Properties: Memory foam reacts to heat and pressure, allowing it to conform to the shape of the body. This contouring effect provides support where it's needed most, such as around the hips and shoulders when lying down.

• Pressure Relief: By conforming to the body's shape, memory foam helps distribute weight evenly, reducing pressure points that can lead to discomfort or pain, especially for individuals with joint or back issues.

• Motion Isolation: Memory foam has excellent motion isolation properties, meaning that movements on one side of the bed are less likely to disturb the other side. This feature makes it a popular choice for couples and those easily disturbed by movement during sleep.

• Durability: High-quality memory foam mattresses and pillows are durable and can maintain their shape and supportive properties for several years with proper care.

• Temperature Sensitivity: Traditional memory foam tends to retain heat, which can lead to a feeling of warmth during sleep. However, newer formulations and designs often incorporate features to mitigate this issue, such as gel-infused foam or open-cell structures for better airflow.