As we all know, one kind of foam is made of traditional high-resilience foam, and the other is made of slow-resilience memory foam. The former kind of foam is very common, the latter kind of slow rebound memory foam is not very common, today we will talk about the benefits of slow rebound memory foam made into pillows.
Slow rebound memory foam and traditional foam
The difference between slow rebound memory foam and traditional foams: slow rebound memory foam is a special material that is different from any foam that has been made before.
Slow rebound memory foam is a material that can deform according to changes in body temperature. When the slow rebound surface is pressurized, it will not produce a rebound force until all the pressure is evenly distributed.
When the external force stops, it will slowly return to its original shape. Slow rebound memory foam is extremely sensitive to temperature and weight. It becomes softer in a hotter environment, and harder in a colder environment.
Therefore, the foam of this material can better fit the uneven body shape of the human body and support various parts of the human body.
Medical experiments show that sleeping on a slow-resilient foam mattress reduces the average number of flips on the bed from 80-100 times to 17-20 times during sleep. The reduction of stress is the main reason for feeling comfortable. Due to the characteristics of the slow rebound memory foam material, it greatly reduces the need for people to turn around in bed, thereby improving people's sleep quality.
Slow rebound memory foam is also called PU memory foam or space memory foam. What are the advantages of using such a foam pillow?
When you sleep on the memory foam pillow, there is no pressure on the head, so it is very comfortable. However, when using ordinary pillows, there is a possibility of pressure on the ears.
Memory foam can fix headaches and reduce the possibility of a stiff neck.
Good air permeability of the memory foam can inhibit mold and prevent bacteria and mites.
It is conducive to blood circulation in the head and promotes people's deep sleep.
It is particularly important for the treatment and prevention of cervical spondylosis, which cannot be cured by drugs. What is needed instead is to let the body slowly adjust and return to the original position of the cervical spine.
Slow rebound memory foam can not only be used to make pillows but also can be used to make mattresses, cushions, lumbar cushions, foot cushions, and other products. It fits all parts of the body and provides better protection and maintenance.
Elements of memory foam pillows
Now let's understand the elements when you pick the memory foam pillows:
The cost of memory pillows is due to the different materials. Some high-end memory pillows use a material called polyurethane. Different from ordinary polyurethane, it has an open-cell structure. When the body's heat and weight are applied to this material, the pressure will be immediately evenly distributed.
Generally, ordinary memory pillows are made of polyurethane or other polyester materials, which are not as good as the former in terms of pressure dispersion function. The imported and domestically produced materials also make quite different prices, by even several times.
The cost is different in weight. Generally, pillows with more high-grade materials are heavier, and the heavier the pillow, the better.
Hand feeling and temperature sensing
The feel and temperature have little relationship with the density of the pillow, mainly due to the mature technology of the factory (depending on the environment and the number of additives added). The high-grade slow rebound foam feels very comfortable, and it feels like kneading the dough with a little slow rebound, or it feels a little greedy or a little stiff.
4. Rebound time
Rebound time is also known as the ability to maintain shape. Generally speaking, the slower the rebound, the better the decompression ability. The rebound time of memory foam is generally 5 seconds, and the rebound time of better memory pillows is more than 10 seconds.
5. Whether it is pure material
Is the pillow made of 100% polyurethane, and is talcum powder added to increase the density? This is the secret of the industry's production process about high density.
More than 90% of slow rebound pillows on the low-end market are produced from non-pure materials, so the density index gradually becomes difficult to measure the true quality of pillows.