Zinus Calm 6" Green Tea Cooling Gel Memory Foam review

Zinus's Calm line is sold on Walmart.com in 6, 8 and 10 inch heights, and the 6-inch twin was $94.98 when we checked. The listing describes layers of cooling gel, green tea infused memory foam, soft comfort foam and a high-density base foam, all CertiPUR-US certified. The twin is rated to support up to 250 lbs, which covers any child and most teens. It arrives compressed in one box and expands within 72 hours. Unlike the Zinus Core Comfort, the Calm listing does not name bunk beds as a use, and it does not mention a removable cover, so plan on a protector for a young child. Compared with the Linenspa 6-inch foam model it lists more layers for $25 less, but Linenspa gives a 10-year warranty on its own store, while this Zinus model relies on Walmart's free 90-day returns for any change of mind.

Who it is for

all-foam comfort under $100

Price

Twin $94.98 on Walmart.com when checked.

Current price is USD $94.98
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Layers of cooling gel, green tea infused memory foam, comfort foam and high-density base foam
• 6-inch twin; also sold in 8 and 10 inch heights
• CertiPUR-US certified foam
• Twin supports up to 250 lbs
• Expands to full size within 72 hours

Strengths and weaknesses

• Strength: All-foam twin for $94.98
• Strength: Four foam layers listed, more than the Linenspa foam pick
• Strength: Free 90-day returns through Walmart.com
• Weakness: Not marketed for bunk beds in the listing
• Weakness: No removable cover mentioned
• Weakness: Feel is not stated as firm or soft in the features

Key facts

• Price: $94.98 twin when checked
• Height: 6 in
• Core: Gel and green tea memory foam
• Max load: 250 lbs (twin)

Where it ranks

Zinus Calm 6" Green Tea Cooling Gel Memory Foam is No. 7 in our Best Bunk Bed Mattresses verdict.