Serenity by Tempur-Pedic 2" Memory Foam with 1" Fiber Fill Pillowtop Mattress Topper review

This Serenity by Tempur-Pedic topper splits its 3 inches into two layers: 2 inches of memory foam with a 1-inch fiber fill pillowtop above it. That gives a softer, quilted first touch than the all-foam models, with memory foam underneath for contouring. Costco listed the queen at $144.99 on November 11, 2026, $15 below the 3-inch Serenity, and the queen listing showed 2,349 reviews averaging 4.4 out of 5, the highest score among the Tempur-Pedic toppers on Costco's queen page. The catch is documentation: Costco's listing gives the layer build in the name but publishes little else, with no weight, cover details or warranty term, so ask Tempur-Pedic at its listed customer line before you buy if those matter. With only 2 inches of foam it suits people who want softness more than people who need support for a sagging mattress.

Who it is for

Sleepers who want a plush pillowtop feel over memory foam

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

• 2 inches of memory foam
• 1-inch fiber fill pillowtop on top
• Twin, Twin XL, Queen and Cal King sizes listed
• Sold under Tempur-Pedic's Serenity line at Costco
• Queen listed at $144.99 on costco.com when checked

Strengths and weaknesses

• Strength: Highest-rated Tempur-Pedic topper on Costco's queen page at 4.4 out of 5 from 2,349 reviews
• Strength: $15 cheaper than the 3-inch Serenity when checked
• Strength: Fiber fill top softens the memory foam feel
• Weakness: Costco's listing gives few specs beyond the layer build
• Weakness: No warranty term on the Costco listing
• Weakness: Only 2 inches of foam, so less support than the 3-inch models

Key facts

• Build: 2 in memory foam + 1 in fiber fill
• Total height: 3 in
• Queen price on costco.com: $144.99 when checked
• Costco rating: 4.4 of 5 (2,349 reviews)

Where it ranks

Serenity by Tempur-Pedic 2" Memory Foam with 1" Fiber Fill Pillowtop Mattress Topper is No. 4 in our Best Costco Mattress Toppers verdict.