The supportiveness of the mattress surface, ranging from extra firm for maximum support to ultra plush for a softer, cushioned feel.

Mattress Comfort Level

The internal components and support system of the mattress, like innerspring, memory foam, or hybrid.

Mattress Construction

The style of the mattress's uppermost comfort layer, such as a pillow top, euro top, or tight top.

Mattress Top

The overall measurement of the item from the floor to its highest point (how tall the item is).

Height

Ultra Plush

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Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top Twin XL Mattress

Experience a series of benefits delivering immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG memory foam for deep, contouring pressure relief.

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top Queen Mattress

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top Full Mattress

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top King Mattress

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top California King Mattress

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top Split Head Queen Mattress

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top Split Head King Mattress

Experience a series of benefits delivering immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG memory foam for deep, contouring pressure relief

Meets federal fire retardant safety standard

Premium, high-density foam core surrounded with Ultimate Edge™ Support for lasting, edge-to-edge mattress stability

Innovative, high-density, premium memory foam for deep, contouring pressure relief

Topped with a cool-to-the-touch CoolFeel™ Cover and Carbon Fiber Memory Foam draws heat away from the body

Designed to minimize the impact of your partner's movement

This plush mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. High-density memory foam, NXG™ Memory Foam provides deep, contouring pressure relief. A cool-to-the-touch cover offers immediate cooling, while Carbon Fiber Memory Foam draws heat away from the body for all-night comfort. Plus, a high-density foam core provides durable support.

CertiPUR-US® Certified means our foam was tested for and is free from harmful chemicals and gasses

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.

Serta iSeries NXG mattresses are compatible with most frames, including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames.

Serta has been in the sleep industry for over 90 years and has been dedicated the entire time to helping people like you find a solution to your sleep problems so you can finally sleep better than you ever have. We love helping people find their best sleep and this is why our brand exists.

We believe that mattress shopping shouldn’t be stressful. We also believe whether you are buying online or in-store, you should be comfortable during the entire purchase process. So no matter if you're a back, stomach or side sleeper or if you sleep at night or during the day, we have a product to help you get the sleep you deserve. Check out some of the things we’ve learned along the way that help us to continue to be able to bring new sleep innovations to the table.

*Mattress only, all other products sold separately. Images may not reflect actual size.

Ultra Plush

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