Gel Plush Memory Foam 12 Inch Mattress by South Bay

The South Bay 12 Inch Gel Plush Memory Foam Mattress stacks multiple layers of specialty foam to hold you cool and comfortable through the night, pairing a deeply cushioning plush surface with a ventilated base and reinforced perimeter.

Cloudy Mattress is an authorized South Bay dealer, so every purchase arrives with full manufacturer coverage, secure checkout, and verified buyer reviews. The feel sits firmly on the plush side of the comfort scale, yielding at the shoulders and hips while the base holds your alignment, which makes it a strong plush gel memory foam mattress for side sleepers seeking pressure point relief.

What separates this build from most gel foam mattresses is where the gel actually sits. Two separate gel memory foam layers occupy the comfort system rather than one, sandwiching a layer of standard memory foam between them. That means the gel is working at two depths instead of only at the surface, so cooling continues as your body settles further into the mattress rather than fading the moment you sink past the top inch.

The 5.5-inch Flex-Air Channel Base does two jobs at once. Air channels run through the foundation, letting body heat escape downward instead of pooling beneath you, and the flexible structure allows the entire mattress to move with an adjustable base rather than fighting against it.

Between the comfort layers and the base sit a half-inch of memory foam and an inch of support foam, easing the transition so the plush surface always has something firm underneath it and never gives way to a bottoming-out sensation.

The perimeter is reinforced with patented Edge Support technology, which delivers a stable, supportive edge to sit on when getting in and out of bed and increases the usable sleeping surface by 20%. That perimeter area is exactly what all-foam mattresses normally surrender to soft, collapsing sides, and recovering it means the full width of the bed stays sleepable.