Zinus Spa Sensations Dual-Layer 4" Memory Foam Mattress Topper review

Most cheap 4-inch toppers are one slab of soft foam. Zinus splits its Spa Sensations topper into two layers: 1.5 inches of memory foam infused with green tea and charcoal on top, and 2.5 inches of high-density base support foam below. That makes it a sensible choice for a worn mattress, where a soft slab alone can bottom out. The bottom is non-slip, the listing says it fits standard or deep-pocket fitted sheets, and the foam is CertiPUR-US certified. It ships compressed and rolled. On Walmart.com the queen was $114.00 when we checked, sold and shipped by Walmart itself with free 90-day returns, and twin, twin XL, full and king ran from $84 to $134. The listing showed a 4.3 average from 6,452 ratings. The trade-offs are a thinner memory foam layer than all-foam rivals and no listed cover.

Who it is for

Value buyers who want support under the softness

Price

$114 for a queen on Walmart.com when checked; twin $84, king $134.

Current price is USD $114.00
Quoted from the vendor pricing page on November 11, 2026.

Key features

• 1.5-inch memory foam layer infused with green tea and charcoal
• 2.5-inch high-density base support foam
• Non-slip bottom to keep the topper in place
• Works with standard or deep-pocket fitted sheets, per the listing
• CertiPUR-US certified foam in twin, twin XL, full, queen and king

Strengths and weaknesses

• Strength: Two foam layers for $114 in queen
• Strength: Sold and shipped by Walmart.com with free 90-day returns
• Strength: 4.3 out of 5 from 6,452 ratings on the Walmart listing
• Weakness: No removable cover is listed, so use a protector
• Weakness: No California king size on the listing
• Weakness: Only 1.5 inches is memory foam, so it sinks less than all-foam picks

Key facts

• Queen: $114
• Layers: 1.5 in memory foam + 2.5 in base foam
• Returns: Free 90-day at Walmart
• Sizes: Twin to king

Where it ranks

Zinus Spa Sensations Dual-Layer 4" Memory Foam Mattress Topper is No. 2 in our Best 4-Inch Mattress Toppers verdict and No. 1 in Best Walmart Mattress Toppers.