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Most mattresses come with 300 to 800 coils or that. Of course, it all will depend on the measurements the mattress. The bigger the mattress, the more coils there are. So it is considered that if ever the mattress has more coils, it provide you with better support and are definitely more comfortable to sleep on. But you should keep in mind that you can apply different associated with coils. A futon mattress with springs may have about 300 coils, but provide the same amount of comfort if for example the size these coils is larger than natural. Change