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.
When shopping for a mattress, it is suggested that you lie down for a full 15 minutes in your typical sleeping position, if you're able to experience the mattress in person. Experts found that shoppers who have liked the mattress after testing it for 15 minutes enjoyed the mattress the same after a month's time.