--- product_id: 666314489 title: "IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue" brand: "iululu" price: "¥158767" currency: JPY in_stock: true reviews_count: 6 category: "Iululu" url: https://www.desertcart.jp/products/666314489-iululu-mattress-topper-king-3-inch-gel-memory-foam-bed store_origin: JP region: Japan --- # ventilated cooling design 3-inch gel memory foam CertiPUR-US certified durability IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue **Brand:** iululu **Price:** ¥158767 **Availability:** ✅ In Stock ## Summary > ❄️ Upgrade your sleep game with cool, contouring comfort! ## Quick Answers - **What is this?** IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue by iululu - **How much does it cost?** ¥158767 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/666314489-iululu-mattress-topper-king-3-inch-gel-memory-foam-bed) ## Best For - iululu enthusiasts ## Why This Product - Trusted iululu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tailored Comfort:** Choose between 2-inch or 3-inch thickness to customize your mattress softness or support. - • **Effortless Upgrade:** Compressed packaging means easy delivery and quick setup—just unroll and relax. - • **Sleep Cool, Sleep Smart:** Gel-infused memory foam with air holes keeps you sweat-free and refreshed all night. - • **Mattress’s Best Friend:** Protects your mattress while enhancing comfort, easy to remove and air out for freshness. - • **Pressure Points, Meet Your Match:** High-density, slow-rebound foam contours perfectly to your body for targeted relief. ## Overview The IULULU King Mattress Topper features 3 inches of gel-infused memory foam designed to keep you cool and comfortable with ventilated air holes. CertiPUR-US certified for quality and durability, it offers medium-soft support that adapts to your body shape, relieving pressure points. Available in two thickness options, it ships compressed for easy setup and helps extend mattress life while enhancing sleep quality. ## Description Easy Set up Review: Not a good Quality - Low density foam Review: Great mattress topper - This mattress topper came very neatly packaged and took about an hour to fully expand. The size is accurate, and it made a huge difference in my sleep quality. I was dealing with back pain from my old mattress, but this topper provided just the right amount of support and cushioning to relieve pressure points. The memory foam contours perfectly to my body without feeling too soft or too firm. Another great feature is the breathability unlike some memory foam toppers that trap heat, this one stays cool and comfortable throughout the night. The topper is also soft and wellmade, adding to the overall premium feel. Overall, this mattress topper exceeded my expectations. It’s an easy and affordable way to upgrade an old or toofirm mattress, and I highly recommend it to anyone looking for better sleep and extra support. ## Features - 【Gel Memory Foam Mattress Topper】Crafted with gel-infused memory foam, this king mattress topper offers a cool and comfortable sleeping surface. Additionally, its ventilated design, featuring air holes, assists in absorbing moisture and sweat from your body, preventing them from penetrating the mattress. - 【Pressure Relief】If you find yourself tossing and turning due to the firmness of your mattress, the addition of a topper could significantly enhance your sleep quality. Designed with slow-rebound and high-density memory foam, this king-sized mattress topper adapts to your body shape, provides comprehensive body support, and alleviates pressure in key areas. Rest assured, our memory foam is CertiPUR-US Certified, ensuring durability, performance, and content quality. - 【Available in 2 Different Thicknesses】The inclusion of this mattress topper will modify the firmness of your mattress, catering to a wide range of sleep positions while conforming to your body shape for improved support. Our mattress topper comes in 2 different thickness options. Opt for the 2-inch if you desire a slight addition of cushioning and softening for your new mattress. Alternatively, if you seek more substantial support, the 3-inch options are available for your preference. - 【Easy Set up】Compressed into a single box for convenient shipping and easy maneuvering into your bedroom, this king-sized mattress topper simplifies the delivery process. Upon receiving your topper, simply unbox, unroll, and allow it to sit in a well-ventilated space for 48-72 hours to achieve full expansion. Note that in lower temperatures, additional time may be required for complete expansion. - 【Practical Mattress Topper】Enhance your night's sleep by placing this mattress topper on your bed for an even comfier experience. Not only does it contribute to your comfort, but it also helps maintain the condition of your mattress. Easily removable, you can take it out of bed and air the entire setup. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CWRC1XN7 | | Age Range Description | Adult | | Best Sellers Rank | #174,576 in Home ( See Top 100 in Home ) #182 in Fiber Beds | | Brand | IULULU | | Brand Name | IULULU | | Closure Type | Pull On | | Closure type | Pull On | | Color | Blue | | Colour | Blue | | Customer Reviews | 4.4 out of 5 stars 5,290 Reviews | | Fabric Type | Memory Foam | | Included Components | Mattress Topper only | | Item Firmness Description | Medium to Soft | | Item Type Name | Memory Foam Mattress Topper | | Item Weight | 13 Pounds | | Manufacturer | IULULU | | Manufacturer Part Number | NJMF-3K | | Material Type | Memory Foam | | Model Name | mattress topper | | Model Number | NJMF-3K | | Number of Items | 1 | | Other Special Features of the Product | Cooling | | Product Care Instructions | Spot Clean Only | | Size | King | | Special features | Cooling | | UPC | 755752608553 | | Unit Count | 1 Count | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** IULULU - **Colour:** Blue - **Fabric Type:** Memory Foam - **Size:** King - **Special features:** Cooling ## Images ![IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue - Image 1](https://m.media-amazon.com/images/I/71GQQX5XuiL.jpg) ![IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue - Image 2](https://m.media-amazon.com/images/I/714AM8lb-hL.jpg) ![IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue - Image 3](https://m.media-amazon.com/images/I/71D3nvL3iaL.jpg) ![IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue - Image 4](https://m.media-amazon.com/images/I/7160SFAO+eL.jpg) ![IULULU Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue - Image 5](https://m.media-amazon.com/images/I/716HPJ5ZYuL.jpg) ## Available Options This product comes in different **Color, Size, Style** options. ## Customer Reviews ### ⭐ Not a good Quality *by R***Y on 20 June 2025* Low density foam ### ⭐⭐⭐⭐⭐ Great mattress topper *by G***O on 18 February 2025* This mattress topper came very neatly packaged and took about an hour to fully expand. The size is accurate, and it made a huge difference in my sleep quality. I was dealing with back pain from my old mattress, but this topper provided just the right amount of support and cushioning to relieve pressure points. The memory foam contours perfectly to my body without feeling too soft or too firm. Another great feature is the breathability unlike some memory foam toppers that trap heat, this one stays cool and comfortable throughout the night. The topper is also soft and wellmade, adding to the overall premium feel. Overall, this mattress topper exceeded my expectations. It’s an easy and affordable way to upgrade an old or toofirm mattress, and I highly recommend it to anyone looking for better sleep and extra support. ### ⭐⭐⭐⭐⭐ Worth the price. Most comfortable topper ever. *by Z***Z on 21 February 2026* This is the best topper I've ever slept on. I have fibromyalgia and I'm a side sleeper. All other mattress toppers left me waking so sore that I had trouble walking in the morning. I will always want one of these on my bed!! It's worth the money. I have had this over two years and i couldn't get rest without it.. ## Frequently Bought Together - Mattress Topper King, 3 Inch Gel Memory Foam Bed Topper for King Size Bed, CertiPUR-US Certified, Blue - Utopia Bedding Waterproof Mattress Protector King Size, Premium Terry Mattress Cover 200 GSM, Breathable, Fitted Style with Stretchable Pockets (White) - FDW 10 inch King Mattress Size/Gel Memory Foam Mattress/Medium Firm Mattresses for Cool Sleep Relieving Pressure Relief CertiPUR-US Certified Mattress in a Box --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/666314489-iululu-mattress-topper-king-3-inch-gel-memory-foam-bed](https://www.desertcart.jp/products/666314489-iululu-mattress-topper-king-3-inch-gel-memory-foam-bed) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-04*