The Spring Air Value Collection Demi Ultra Plush Gel Memory Foam Euro Top Mattress is a plush innerspring mattress built for side sleepers and combination sleepers. Spring Air builds the original Four Seasons Free Arm pocketed-coil unit in the US, paired with high-density support foam and a quilted comfort top. At 16", it sits in the premium profile range — generous enough for adjustable bases yet still easy to sheet.
A foam-encased perimeter lets you use the full sleep surface — and sit on the edge to dress.
A breathable quilt and gel-infused top draws heat away so you don't wake up hot.
A tall comfort and support stack means more contour up top and stronger lumbar push-back below.
We deliver, set up in your bedroom, and haul away your old mattress — no extra charge.
A 3/10 firmness — soft enough to cradle hips and shoulders. Best for side sleepers under 200 lb.
Built for adaptive support and breathability. Every layer is hand-checked before it ships from our warehouse.
The Demi Ultra Plush is the softest and tallest mattress in Spring Air’s Value Collection. At 16 inches with an ultra plush gel foam euro top, it delivers the deepest cushioning available before stepping into the Back Supporter hybrid collections. $1,349 Queen positions it as the premium Value Collection option — for sleepers who want maximum softness with gel cooling.
The 16-inch profile accommodates an ultra plush euro top above gel-infused memory foam — two soft layers creating the deepest body contouring in the Value Collection. The ultra plush configuration sits at approximately 2-3/10 on the firmness scale. Gel infusion is critical at this softness level because ultra plush mattresses typically trap significant heat. The gel counteracts this by drawing warmth away from the sleep surface. The support core underneath prevents the excessive sinking and hammock effect that plague cheaper ultra plush mattresses. CertiPUR-US certified.
Dedicated side sleepers wanting the deepest cushioning in the Value Collection. Hot sleepers who love ultra plush — gel cooling on the softest surface is rare at $1,349. Pressure-sensitive sleepers — ultra plush + euro top distributes weight across maximum surface area. Sleepers who tried the Lexi Plush and want more — the Demi goes deeper.
Twin, Twin XL, Full, Queen ($1,349), King, CA King. Free delivery. Deep-pocket sheets recommended (18"+). Visit a showroom or call (800) 218-3578.
