Suggested Retail: $133.49. Sleep Mantra King Cooling Mattress Topper. The Sleep Mantra King Cooling Mattress Topper offers a snug and cozy feeling with its extra plush thick padding and soft quilted surface. This luxury odor-free mattress topper is designed to provide supreme comfort and a restful sleep. It is filled with advanced 100% Polyester Fibers for a soft and bouncy feel, adding a layer of protection, comfort and softness to your mattress. Certified STANDARD 100 by OEKO-TEX, the topper is safe from 300+ harmful chemicals. Brand: Sleep Mantra. Model: 840307139535. Lot Sticker: OH001-00000561-11. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.