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.
A mattress can be an expensive investmentâweâve tested models that cost in excess of $4,000âbut if you treat your new one properly, it could easily last 10 years. Our advice: â¢ Donât let your kids use your bed as a trampoline. â¢ Rotate your mattress.