Mattress Insider Latex Sofa Bed Mattress review

Mattress Insider's latex model swaps the Deluxe's gel memory foam for a 1-inch layer of blended latex on top of a thicker 3.5-inch core of soy-based high-density foam. The result is a 4.5-inch mattress with a quicker, springier response that suits guests who feel stuck in memory foam. Like the Deluxe, it is described as double-sided, with a firmer side and a medium-firm side, under an organic cotton cover, and it is made in the USA. The page calls the latex blended, so it is not the all-natural or organic latex PlushBeds and The Futon Shop use, and the latex layer is thin. In exchange, it costs $329 for a 35 by 72 inch mattress and $449 at the top of the size range when we checked, far below the organic options. Mattress Insider backs it with a 10-year warranty and a 365-night guarantee, with a $59 restocking fee on returns.

Who it is for

Guests who prefer a bouncier feel than memory foam

Price

$329 to $449 depending on size when checked; free FedEx Ground shipping.

Price range: $329.00 through $449.00
Quoted from the vendor pricing page on November 11, 2026.

Key features

• 1-inch blended latex comfort layer
• 3.5-inch Soy Bio Support high-density foam core
• Double-sided design with a firmer side and a medium-firm side
• Organic cotton cover
• Latex and foam certified by CertiPUR-US, according to Mattress Insider

Strengths and weaknesses

• Strength: Latex feel for $329, half the PlushBeds latex price
• Strength: 10-year manufacturer's warranty
• Strength: 365-night sleep guarantee
• Weakness: Blended latex, not 100% natural or organic
• Weakness: Only 1 inch of latex
• Weakness: Returns carry a $59 restocking fee plus return shipping

Key facts

• Price: $329 to $449
• Height: 4.5 in
• Comfort layer: 1 in blended latex
• Warranty: 10 years

Where it ranks

Mattress Insider Latex Sofa Bed Mattress is No. 3 in our Best Sofa Bed Mattresses verdict.