Serta 3 inch memory foam mattress topper

Instantly upgrade your mattress with the Serta Perfect Sleeper Duocool mattress topper. It's constructed with cooling gel memory foam inside plus InstantCool cover outside to give you continuous refreshing comfort for a great night's sleep. This topper is anti-microbial and features a Nanotex wicking with stain release, delivering fresh, clean comfort. This piece is completed with personalized support adding relief to pressure points so you sleep peacefully and wake renewed.

  • 80"L x 60"W x 3"H
  • Product weight: 20.8 lb
  • Material: cotton; nylon; polyester microfiber; polyester
  • Cover: Machine wash cold. Tumble dry low
  • Foam core: Spot clean
  • Features 3" cooling gel memory foam plus InstantCool and fresh cover
  • Cooling fibers in cover never wear out
  • Cover is anti-microbial for fresh, clean sleep
  • Personalized support relieves pressure points – sleep deep and wake renewed
  • Custom fit cover for mattresses up to 17" deep
  • CertiPUR-US certified foam proudly made in the USA
  • Protects and extends the life of your mattress
  • Great for a master or guest bedroom

If you wish to return your online order, please visit your order history to start the return process. If you have any issues, contact our Customer Care Support Center at 1-866-BIG-LOTS (244-5687) for assistance with making your return. Please be prepared to provide your order number and email address, or your rewards number, so that we may better assist you.

For return terms, see our full Returns Policy.

In store pickup is FREE. Orders placed by 5pm local time can be picked up the same day.

Need it? Get it! Got it. Same Day Delivery available from select stores. You can choose from available delivery windows in cart.

Standard Delivery is FREE on orders over $59. Expedited delivery can be chosen in cart for eligible items.

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Transform your bed into a cool paradise. With responsive support and three kinds of cooling power, it’s easy to see why this is our most popular mattress topper.


  • Click this BED & BATH GUIDE to find the perfect fit and more!
  • FEATURES

    • Gives you double the cooling with 3" gel memory foam and a cover with two types of cooling fibers
    • Gel memory foam soothes you so you sleep deeper, better and wake refreshed
    • Washable cover snugly fits most mattresses up to 17” deep
    • Personalized support that is proven to help relieve pressure points
    • Protects and extends the life of your mattress
    • CertiPUR-US certified

    SIZING

    • Twin: 39" x 75"
    • Twin XL: 39" x 80"
    • Full: 54" x 75"
    • Queen: 60" x 80"
    • King: 76" x 80"
    • Cal. King: 72" x 84"

    CONSTRUCTION & CARE

    • Memory foam, spot clean
    • Polyester cover, machine wash
    • Imported
    • Manufacturer's 10-year limited warranty
    • For warranty information please click here
    • ATTENTION: Online orders are shipped in a standard brown shipping container. Gift givers, or those who want the pictured product packaging, are advised to buy online and pick up in store.

    The antimicrobial properties do not protect users or others against bacteria, viruses, germs, or other disease organisms.

    You may return most new and unopened Amazon International Store items within 30 days of delivery for a full refund of the price you paid. Unless otherwise stated, original delivery costs, Import Fees Deposit and return shipping for change of mind returns are not refunded. Change of mind returns within 30 days of receipt of delivery are easy with our online Returns Support Centre. Please note that it can take up to 15 days for an item to reach us once you return it. If we receive your returned item(s) after 45 days from receipt of delivery, we may deduct a 20% restocking fee from your refund.

    You may return a defective, faulty, damaged, or incorrect item for a full refund of the price you paid, including original delivery costs, Import Fees Deposit and a credit of S$30 to cover reasonable substantiated delivery costs associated with returning the item(s) to us. If your reasonable return shipping costs exceed S$30, Contact us before shipping the item and provide evidence to us to substantiate the reasonable costs incurred, for which you will be reimbursed.

    Please use the Returns Support Centre to return a defective item within 30 days of receipt of delivery. If you need to return a defective item outside of the 30-day window, please Contact us.

    Third-party sellers on Amazon.sg are expected to offer returns on an equivalent basis, but their policies may vary. To determine whether items sold and fulfilled by a third-party seller can be returned, check the returns policy set by the seller.

    Please see our Amazon International Store Returns policy for information about returning Amazon International Store items.

    How long does a 3 inch memory foam topper last?

    The average lifespan of a mattress topper is three to five years.

    Is 3 mattress topper too thick?

    A mattress topper that is 3 inches should be enough for most sleepers. However, if you can splurge and want a more plush bed, opt for a thicker 4-inch topper. The filling inside the mattress topper will add to the quality and support, depending if it is memory foam, latex, or down.

    What is the best 3in mattress topper?

    Best overall mattress topper At 3 inches thick, the Tempur-Adapt topper will add noticeable plushness to any mattress. (Meanwhile, if you are looking for one that's a bit more low profile, Tempur-Pedic also sells a 2-inch-thick memory-foam topper called the Tempur-Cloud.)

    How long does a 3 inch memory foam mattress last?

    Memory foam mattresses can last anywhere from eight to ten years, depending on how well they're cared for. Typically, a memory foam mattress will last as long as any other type of mattress, whether it's an innerspring or hybrid.