A mattress is a mat or pad which is placed on the top of a bed and is used to sleep or lie. A good mattress is essential for a good night’s sleep and to gain the energy consumed by the whole days work. This helps the individual fresh for next day’s job. A mattress also affects our body posture. A mattress should match our sleeping style. The mattresses are filled with a variety of natural materials including straw and feathers. It usually contains either an inner spring core or...