The 620 Imperial Plush offers great value
and shares the primary benefits of the 675 Imperial: Exceptional
comfort with interchangeable replaceable component parts. Our supportive
Marshall Individual Coil system conforms to each sleeper’s individual
shape better than other spring systems, isolates motion transfer and
reduces noise because coils are not wire tied or connected metal to
metal. As a result this mattress provides firm support for sleepers of
all sizes and shapes better than any other spring system on the market.
Upgrade your 620 into a 675 by adding latex or memory foam comfort
layers. Increase firmness by exchanging the quilted cover for a stretch
cover at any time.
Better Design, Better Program.
All Sterling Sleep System mattresses meet the 1632, 1633 Federal Flammability Standard (Cal TB603)
US Patents 7,191,384 & 7,386,903
Other Patents Pending