Mainstays 1.5 in 7-Zone Reversible Memory Foam Mattress Topper review

This is the thinnest and cheapest topper on the list, and it does something different: it is reversible. One side has zoned massaging comfort, and the other gives firmer targeted support, so you can flip it to whichever you prefer. Seven zones are meant to cushion the shoulders, hips and lower back, and Mainstays says the foam helps reduce motion transfer. At 1.5 inches and 4 lb for a queen, it changes the feel of the bed without adding much height, so existing fitted sheets should still fit. Walmart.com sold the queen for $34.98 when we checked, with Twin XL at $24.98 and king at $44.98, and it carries a 3-year manufacturer's warranty. The listing has about 4,800 ratings averaging 4.3. The limits come from the thin profile: on a very firm or worn mattress, 1.5 inches will not do much, and it is spot clean only.

Who it is for

Shoppers who want a thin layer that barely raises the bed

Price

$34.98 for a queen on Walmart.com when checked; Twin XL $24.98.

Current price is USD $34.98
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Reversible: zoned massaging side and firmer targeted-support side
• 7 comfort zones for shoulders, hips and lower back
• 1.5 inches of memory foam, medium feel
• Queen measures about 79 x 59 x 1.5 inches
• 3-year manufacturer's warranty

Strengths and weaknesses

• Strength: Cheapest topper on this list, from $24.98 for Twin XL
• Strength: Two feels in one topper
• Strength: 3-year warranty, unlike the Mainstays 2-inch model
• Weakness: 1.5 inches makes a small change on a hard mattress
• Weakness: Spot clean only, no cover
• Weakness: Listing gives no foam density or cover details

Key facts

• Queen price: $34.98
• Thickness: 1.5 in
• Firmness: Medium
• Warranty: 3 years

Where it ranks

Mainstays 1.5 in 7-Zone Reversible Memory Foam Mattress Topper is No. 7 in our Best Walmart Mattress Toppers verdict.