A firm mattress is essential for people with back pain. It can be very instrumental in allowing those with back pain to sleep through the night and awaken pain-free. The firmness of the mattress refers to the density of the coils and springs inside the mattress, also called the core. Greater density creates the firm feeling and supports the spinal column. Many mattress retailers will show you samples of the insides of mattresses, which allows you to compare the density of the cores.
Some people actually find that a firm mattress is too hard to be comfortable for an extended period of time. Also, a mattress that initially feels firm can become softer and less supportive over time if it is not constructed of quality materials. Damage can be caused by sitting on the edges of the bed or jumping on it. To avoid this, care for your mattress by flipping it every few months.
The most common type of plush mattress is called a pillow top. This refers to the soft, pillow-like layer that is on top of the mattress. Not only does it provide a softer, more comfortable layer to sleep on, but because the pillow top is made from hypoallergenic materials, it is ideal for those with allergies. Pillow-top mattresses are also ideal for restful sleep with a partner. The plush layer serves to regulate temperature as well as absorb the movement of a partner.
Plush mattresses tend to develop body impressions over the years. Thus, certain areas of the mattress become less soft over time. Another problem with some plush pillow-top mattresses is that they cannot be flipped. Consequently, they can become damaged, especially if slept on in the same position or if they are abused -- for example, by children jumping on them. Plush mattresses are also not recommended for people who need back support.