That depends upon who is using it. Pocket springs cost more, because each spring is separate, and held within its own fabric pocket. If you are sleeping with a partner, then neither of you is disturbed if the other partner if he or she moves in the bed. You get the separation associated with memory foam mattresses – but it comes at an extra cost for that type of innerspring mattress. If you sleep alone you have no need for this separation – unless you have plans ...