Sticky memory foam with temperature sensitivity;
At warm temperatures, it will soften, and it will soften in cold conditions.
This explains why it feels firm when you lie down for the first time, but at 4-
After 5 minutes it starts to soften and fit your body.
The memory foam mattress is actually graded according to the elasticity, hardness, durability, toughness and strength.
The density of the mattress is the first thing most people look for when evaluating the mattress.
This is also an element of the scoring system.
Some people may think density will tell you how strong the mattress is, but in reality it just reflects the overall weight of the mattress.
Therefore, a heavy mattress is more dense and contains more materials and chemicals.
As a result, it will be more sticky.
Although some customers report that they prefer a density as low as 4 pounds, the optimal density is considered to be higher than 3 pounds.
For those who want the best combination of comfort and support, 5 pounds or more is considered the best.
Mattress rating shows how hard the Mattress is.
The formula for this grade is to calculate how much weight it takes to indent 25% on the mattress.
For example, if the rating is 15, this will tell us that it takes 15 pounds to compress 25%.
Therefore, the higher the rating, the stronger the bubble.
Most mattresses are rated at 12-16.
The top layer will definitely be softer to ease the pressure points, while the bottom will be harder to provide support.
Some manufacturers are unable to tell you what rating their bubble has and others refuse to disclose this information.
This rating really can\'t tell you the quality of the bubble.
Elasticity is another factor in measurement.
The test method is to drop a steel ball from a specific height and then measure how much memory foam has recovered.
Ideally, the top layer should actually have a lower elasticity.
In this way, it does not bounce back to the body, causing stress points.
However, the base should be resilient so that sufficient support can be provided.
In addition, the base with high elasticity will make it more durable.
Tensile strength is another factor in memory foam grading.
This includes the force required to tear the mattress by stretching it.
Frankly, this does not provide any insight into the quality or durability of memory foam.
Manufacturers tend to reveal their mattresses as little as possible, so it\'s almost impossible to find out all of this.
Sometimes they don\'t even tell you about density.