The best mattress is considered the one with coils. These metal spiral coils are present inside the mattress which makes the mattress of high quality while providing you with comfort and support.
A standard size mattress should have at least 300 coils whereas, a queen size mattress has 400 coils, and for the king-size – it should have more than 380 coils. Mattress with higher coil counts is considered to be much greater as compared to the minimum level of coils.
The coil mattresses last more than a simple foam mattress. These coils are protected with tempered steel and further with foam cushion to meet the comfortable desire of the customers.