Spring Mattresses (EMERALD SERIES) consist of a grid of springs,
each in their own fabric pocket. Because they’re not wired together,
each spring is able to work more or less independently, The weight
on one spring doesn’t affect those surrounding it, (Hence if your
partner wakes up in the middle of the night the spring tension does
not affect your sleep). Also a pocket-spring mattresses is
considered the most comfortable type of inner-spring mattress.