The Serta® iSeries® NXG™ 4500 Ultra Plush Foam Core Mattress is an all-foam mattress designed for sleepers who want a deeply plush feel with advanced cooling and pressure relief. Built with Serta’s NXG™ Memory Foam and a high-density foam core, it delivers body-hugging comfort, strong motion isolation, and consistent edge support—making it ideal for side sleepers and anyone who prefers a softer, contouring sleep surface. MATTRESS LAYERS: CoolFeel™ Cover provides instant cool-to-the-touch comfort that activates immediately upon contact Carbon Fiber Memory Foam actively draws heat away from your body for consistent all-night temperature regulation High-Density NXG™ Memory Foam delivers superior contouring pressure relief with ultra-plush cushioning for deep comfort Premium high-density foam core foundation provides durable, consistent support surrounded by Ultimate Edge™ Support technology Ultimate Edge™ Support technology ensures lasting edge-to-edge stability and maximizes your usable sleep surface area All-foam construction creates a smooth, body-hugging feel that absorbs motion and contours closely to your shape Compatible with most bed frames including traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable bases MATTRESS FEATURES: Ultra Plush feel specifically optimized for side sleepers requiring deep pressure relief and luxurious cushioning Advanced dual-layer cooling system featuring CoolFeel™ Cover and Carbon Fiber Memory Foam NXG™ Memory Foam provides innovative, high-density pressure relief with ultra-plush comfort layers Premium high-density foam core delivers consistent support throughout the entire sleep surface Ultimate Edge™ Support ensures comprehensive edge-to-edge stability and maximizes usable surface area Motion control engineering significantly reduces partner movement disturbance for undisturbed rest CertiPUR-US® Certified foam guarantees safety, quality standards, and chemical-free materials Immediate Cooling: Advanced Temperature Management Experience refreshing sleep from the moment you lie down with immediate cooling technology that eliminates heat buildup before it disrupts your rest. The CoolFeel™ Cover delivers that instantly refreshing cool-to-the-touch sensation that helps your body transition into sleep mode faster, eliminating the uncomfortable warmth that can delay sleep onset and interrupt your restful nights. Working seamlessly with the cover, Carbon Fiber Memory Foam continuously pulls heat away from your body throughout the night, effectively redistributing warmth and maintaining a balanced sleep temperature. This integrated dual-layer cooling approach keeps you comfortably cool from bedtime through morning, transforming hot, restless nights into refreshing, uninterrupted sleep experiences—essential for side sleepers who need extended comfort throughout the night. Cooling Benefits: Instant Cool Surface - Immediate refreshing comfort upon contact Active Heat Redistribution - Carbon Fiber Memory Foam pulls heat away Consistent Temperature Balance - Maintained comfort throughout the night Faster Sleep Onset - Cool surface promotes quicker falling asleep Enhanced Sleep Continuity - Fewer temperature-related sleep interruptions Synergistic Cooling Design - Cover and foam work together seamlessly Instant Pressure Relief: Ultra-Plush Contouring Comfort The 4500 Ultra Plush Foam incorporates innovative NXG™ Memory Foam—a premium, high-density memory foam that delivers exceptional contouring pressure relief with luxurious ultra-plush cushioning. This advanced foam technology adapts to your body's natural contours, distributing weight evenly and eliminating pressure points that can cause discomfort, all while providing the deep cushioning essential for side sleepers who need enhanced shoulder and hip relief. Ideal for side sleepers who need deep pressure relief, the NXG Memory Foam contours to your unique shape, allowing your shoulders and hips to sink comfortably into the plush surface while maintaining proper spinal alignment. The ultra-plush feel ensures pressure-sensitive areas like your shoulders, hips, and side receive the relief they need, creating a sleep surface that cradles your body in luxurious comfort while eliminating the pressure points that can disrupt restorative sleep. Pressure Relief Features: High-Density NXG™ Memory Foam - Advanced contouring technology with plush cushioning Deep Pressure Point Relief - Eliminates discomfort in shoulders, hips, and side Adaptive Body Contouring - Responds to your unique body shape Ultra-Plush Comfort Layers - Ideal cushioning for side sleepers Even Weight Distribution - Reduces stress on joints and pressure-sensitive areas Personalized Comfort Response - Tailored support for side sleeping positions Ideal Support: Premium Foam Core with Ultimate Edge™ Technology The premium high-density foam core represents a sophisticated approach to all-foam mattress support. This intelligent design features a dense, supportive foundation that works seamlessly with the plush comfort layers to provide consistent support throughout the entire sleep surface. Unlike traditional foam mattresses that may lack edge support, this advanced construction ensures every inch of your mattress delivers reliable support. Your entire body benefits from the uniform support provided by the high-density foam core, which maintains proper spinal alignment while allowing the ultra-plush comfort layers above to contour to your shape. This precision-engineered approach ensures every part of your body receives the ideal combination of plush cushioning and supportive foundation, promoting healthy sleep posture and reducing the morning stiffness or discomfort that can result from inadequate support. Support Benefits: Premium High-Density Foam Core - Dense foundation for consistent support Enhanced Spinal Alignment - Optimized support for natural body curves Natural Body Curve Accommodation - Supports your body's natural contours Ultimate Edge™ Technology - Comprehensive edge-to-edge stability Long-Lasting Performance - High-density foam core for consistent support Optimal Posture Support - Promotes healthy spinal alignment Motion Control: Peaceful, Undisturbed Rest Enjoy the tranquility of undisturbed sleep with the 4500 Ultra Plush Foam's sophisticated motion control design. The strategic combination of memory foam layers works harmoniously to absorb and minimize the impact of your partner's movements, ensuring that nighttime activity doesn't disrupt your restful sleep. All-foam construction excels at motion isolation, creating a sleep surface that absorbs movement rather than transferring it. This motion-isolating technology proves especially valuable for couples with varying sleep schedules or different movement patterns. Whether your partner rises early, shifts positions frequently, or gets in and out of bed during the night, you'll experience uninterrupted sleep thanks to the mattress's ability to contain and isolate motion within individual sleeping zones. The all-foam design provides superior motion absorption compared to hybrid models, making it ideal for light sleepers. Motion Control Features: Superior Motion Isolation - All-foam construction absorbs movement Memory Foam Dampening - Absorbs and cushions movement effectively Minimal Motion Transfer - Movement contained within individual zones Couple-Friendly Design - Undisturbed rest for both partners Enhanced Sleep Continuity - Reduced wake-ups from movement Perfect for Light Sleepers - Ideal for couples with different sleep habits Ultimate Edge™ Support: Comprehensive Edge-to-Edge Stability Ultimate Edge™ Support technology guarantees that every square inch of your mattress delivers consistent support and stability, from the center to the very perimeter. This advanced edge support system prevents the sagging and compression common in traditional all-foam mattresses, maximizing your usable sleep surface and providing a solid, stable edge for sitting or sleeping near the perimeter. Whether you prefer sleeping near the edge, need additional space for stretching out, or simply value the confidence of knowing your mattress maintains its shape over time, Ultimate Edge™ Support provides lasting edge-to-edge stability. This technology ensures your mattress preserves its support characteristics throughout its entire lifespan, delivering consistent comfort and plushness wherever you choose to sleep, even when positioned near the edge. Edge Support Benefits: Comprehensive Edge Stability - Uniform support across entire surface Maximum Usable Space - Full mattress utilization Prevents Edge Compression - Maintains shape and support over time Stable Perimeter Support - Firm edge for comfortable sitting Durable Performance - Long-lasting edge support technology Versatile Sleep Surface - Comfortable sleep anywhere on the mattress Responsibly Crafted: Verified Quality & Safety Standards The iSeries NXG 4500 Ultra Plush Foam is CertiPUR-US® Certified, ensuring all foam components undergo rigorous testing and verification to be free from harmful chemicals and gasses. This certification confirms that your mattress meets stringent standards for content, emissions, and durability, giving you complete confidence in the materials you sleep on every night. This dedication to responsible manufacturing means you can sleep soundly knowing your mattress delivers not only exceptional comfort and support but also uncompromising safety for you and your family. The CertiPUR-US® certification reflects a commitment to quality, safety, and environmental responsibility that goes beyond comfort to encompass your complete health and well-being. Certification Benefits: CertiPUR-US® Certified - Verified safety and quality standards Chemical-Free Materials - Tested for safety and low emissions Comprehensive Testing - Content, emissions, and durability verified Family-Safe Materials - Safe for you and your loved ones Sustainable Practices - Commitment to environmental responsibility Quality Guarantee - Verified manufacturing standards PRODUCT SPECIFICATIONS Comfort & Feel Feel Level: Ultra Plush Ideal For: Side Sleepers Support Level: Premium High-Density Foam Core Pressure Relief: High-Density NXG™ Memory Foam Cooling Technology: CoolFeel™ Cover & Carbon Fiber Memory Foam Construction & Materials Mattress Type: All-Foam (Memory Foam) Cover: CoolFeel™ Cool-to-Touch Cover Top Layer: Carbon Fiber Memory Foam Comfort Layer: High-Density NXG™ Memory Foam Support System: Premium High-Density Foam Core Edge Support: Ultimate Edge™ Support Technology Base Layer: High-Density Foam Core Certification: CertiPUR-US® Certified Performance Features Motion Control: Engineered to minimize partner movement impact Cooling: Immediate cooling with active heat redistribution Pressure Relief: Contouring pressure relief with ultra-plush comfort Support: Premium foam core for consistent support and alignment Edge Support: Comprehensive edge-to-edge stability Compatibility Traditional Frames: Compatible Box Springs: Compatible Platform Frames: Compatible Slatted Frames: Compatible Bunky Boards: Compatible Adjustable Bases: Compatible (split head base required for split head models) MATTRESS DIMENSIONS Twin XL 79.5"L x 39"W x 13.5"H Weight: 90.75 lbs Full 74.5"L x 54"W x 13.5"H Weight: 114.92 lbs Queen 79.5"L x 60"W x 13.5"H Weight: 133.65 lbs Split Head Queen 79.5"L x 60"W x 13.5"H Weight: 135.07 lbs King 79.5"L x 76"W x 13.5"H Weight: 167.5 lbs Cal King 83.5"L x 72"W x 13.5"H Weight: 166.8 lbs Split Head King 79.5"L x 76"W x 13.5"H Weight: 167.8 lbs CARE INSTRUCTIONS To protect your mattress from stains and spills, we highly recommend using a mattress protector. This will also help with the overall health and lifespan of your mattress. We do not recommend applying liquids to the product. Applying liquids may stain the fabric and make the soiled area worse. Moisture or chemicals applied directly to the mattress can cause premature breakdown of the foam and damage the product. We suggest applying baking soda to the soiled area, let stand about 15 minutes, vacuum, and repeat as needed. Air the product out as much as possible. Regular rotation is recommended to ensure even wear and maintain optimal comfort and support. Use a mattress protector to maintain cleanliness and extend the life of your mattress. Additional Information The Serta® iSeries® NXG™ 4500 Ultra Plush Foam Mattress represents the pinnacle of luxury sleep innovation, combining premium comfort features with next-generation sleep technology. This ultra-plush all-foam design expertly delivers immediate cooling comfort, exceptional pressure relief, and luxurious contouring support, specifically engineered for side sleepers who require deep pressure relief and cloud-like cushioning without sacrificing temperature regulation or support. With its innovative NXG Memory Foam, advanced cooling technology, and premium high-density foam core, the 4500 Ultra Plush Foam delivers a sleep experience that cradles your body in luxurious comfort while eliminating pressure points. The Ultimate Edge™ Support ensures lasting edge-to-edge stability, while CertiPUR-US® certification provides complete confidence in the quality and safety of your investment. Protected by a 100-night in-home trial and 10-year limited warranty, this mattress offers the ideal combination of ultra-plush comfort, cooling technology, and exceptional support in your purchase decision.
Experience refreshing sleep from the moment you lie down with immediate cooling technology that eliminates heat buildup before it disrupts your rest. The CoolFeel™ Cover delivers that instantly refreshing cool-to-the-touch sensation that helps your body transition into sleep mode faster, eliminating the uncomfortable warmth that can delay sleep onset and interrupt your restful nights.
Working seamlessly with the cover, Carbon Fiber Memory Foam continuously pulls heat away from your body throughout the night, effectively redistributing warmth and maintaining a balanced sleep temperature. This integrated dual-layer cooling approach keeps you comfortably cool from bedtime through morning, transforming hot, restless nights into refreshing, uninterrupted sleep experiences—essential for side sleepers who need extended comfort throughout the night.
The 4500 Ultra Plush Foam incorporates innovative NXG™ Memory Foam—a premium, high-density memory foam that delivers exceptional contouring pressure relief with luxurious ultra-plush cushioning. This advanced foam technology adapts to your body's natural contours, distributing weight evenly and eliminating pressure points that can cause discomfort, all while providing the deep cushioning essential for side sleepers who need enhanced shoulder and hip relief.
Ideal for side sleepers who need deep pressure relief, the NXG Memory Foam contours to your unique shape, allowing your shoulders and hips to sink comfortably into the plush surface while maintaining proper spinal alignment. The ultra-plush feel ensures pressure-sensitive areas like your shoulders, hips, and side receive the relief they need, creating a sleep surface that cradles your body in luxurious comfort while eliminating the pressure points that can disrupt restorative sleep.
The premium high-density foam core represents a sophisticated approach to all-foam mattress support. This intelligent design features a dense, supportive foundation that works seamlessly with the plush comfort layers to provide consistent support throughout the entire sleep surface. Unlike traditional foam mattresses that may lack edge support, this advanced construction ensures every inch of your mattress delivers reliable support.
Your entire body benefits from the uniform support provided by the high-density foam core, which maintains proper spinal alignment while allowing the ultra-plush comfort layers above to contour to your shape. This precision-engineered approach ensures every part of your body receives the ideal combination of plush cushioning and supportive foundation, promoting healthy sleep posture and reducing the morning stiffness or discomfort that can result from inadequate support.
Enjoy the tranquility of undisturbed sleep with the 4500 Ultra Plush Foam's sophisticated motion control design. The strategic combination of memory foam layers works harmoniously to absorb and minimize the impact of your partner's movements, ensuring that nighttime activity doesn't disrupt your restful sleep. All-foam construction excels at motion isolation, creating a sleep surface that absorbs movement rather than transferring it.
This motion-isolating technology proves especially valuable for couples with varying sleep schedules or different movement patterns. Whether your partner rises early, shifts positions frequently, or gets in and out of bed during the night, you'll experience uninterrupted sleep thanks to the mattress's ability to contain and isolate motion within individual sleeping zones. The all-foam design provides superior motion absorption compared to hybrid models, making it ideal for light sleepers.
Ultimate Edge™ Support technology guarantees that every square inch of your mattress delivers consistent support and stability, from the center to the very perimeter. This advanced edge support system prevents the sagging and compression common in traditional all-foam mattresses, maximizing your usable sleep surface and providing a solid, stable edge for sitting or sleeping near the perimeter.
Whether you prefer sleeping near the edge, need additional space for stretching out, or simply value the confidence of knowing your mattress maintains its shape over time, Ultimate Edge™ Support provides lasting edge-to-edge stability. This technology ensures your mattress preserves its support characteristics throughout its entire lifespan, delivering consistent comfort and plushness wherever you choose to sleep, even when positioned near the edge.
The iSeries NXG 4500 Ultra Plush Foam is CertiPUR-US® Certified, ensuring all foam components undergo rigorous testing and verification to be free from harmful chemicals and gasses. This certification confirms that your mattress meets stringent standards for content, emissions, and durability, giving you complete confidence in the materials you sleep on every night.
This dedication to responsible manufacturing means you can sleep soundly knowing your mattress delivers not only exceptional comfort and support but also uncompromising safety for you and your family. The CertiPUR-US® certification reflects a commitment to quality, safety, and environmental responsibility that goes beyond comfort to encompass your complete health and well-being.
79.5"L x 39"W x 13.5"H
Weight: 90.75 lbs
74.5"L x 54"W x 13.5"H
Weight: 114.92 lbs
79.5"L x 60"W x 13.5"H
Weight: 133.65 lbs
79.5"L x 60"W x 13.5"H
Weight: 135.07 lbs
79.5"L x 76"W x 13.5"H
Weight: 167.5 lbs
83.5"L x 72"W x 13.5"H
Weight: 166.8 lbs
79.5"L x 76"W x 13.5"H
Weight: 167.8 lbs
The Serta® iSeries® NXG™ 4500 Ultra Plush Foam Mattress represents the pinnacle of luxury sleep innovation, combining premium comfort features with next-generation sleep technology. This ultra-plush all-foam design expertly delivers immediate cooling comfort, exceptional pressure relief, and luxurious contouring support, specifically engineered for side sleepers who require deep pressure relief and cloud-like cushioning without sacrificing temperature regulation or support.
With its innovative NXG Memory Foam, advanced cooling technology, and premium high-density foam core, the 4500 Ultra Plush Foam delivers a sleep experience that cradles your body in luxurious comfort while eliminating pressure points. The Ultimate Edge™ Support ensures lasting edge-to-edge stability, while CertiPUR-US® certification provides complete confidence in the quality and safety of your investment. Protected by a 100-night in-home trial and 10-year limited warranty, this mattress offers the ideal combination of ultra-plush comfort, cooling technology, and exceptional support in your purchase decision.
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