If the specific gravity has a value of greater than one, then the object sinks in water and if it is less than one, then the object floats in water. If the specific gravity has a value equal to one, then the object will neither sink nor float. The specific gravity is a very important factor in different industries.
On average, your mattress should last anywhere between 8 to 10 years. However, there are a lot of elements that can increase or decrease the longevity of your mattress. Your mattress is an investment â the better you take care of it and the more money you put into it will increase the longevity of your mattress.
If a mattress is never flipped, the area of the bed where you sleep will compress and form body impressions over time. When not flipped, a mattress that is supposed to last for 20 years will only be comfortable for 5-10. This is the reason we are so against mattresses with sewn on mattress toppers or pillow tops.