Serta iSeries Hybrid


Featuring pressure-relieving foams, enhanced cooling, and innovative support, so you can sleep and wake refreshed night after night. Available exclusively at Mattress Firm.

74.5" long x 38" wide x 12" high
Designed for a cool, pressure-relieving sleep
Offers the perfect balance between soft and firm; Ideal for all sleep positions

Based on your selections

iSeries Hybrid 1000 Medium

A medium-feel supportive 12” mattress with a cool-to-the-touch cover, cooling foams, and responsive, individually-wrapped coils
You'll be notified when this product is back in stock.

Need help making a decision?

Our experts are standing by to help you find your perfect mattress.

Call 1-888-708-1466 Find a store

  • Overview
  • Details
  • Shipping & returns



Responsive, conforming support with a 1025-density individually-wrapped coil system

Pressure Relief

Contouring memory foams help relieve aches and pains


Topped with a cool-to-the-touch MaxCold™ cover

Motion Control

Designed to minimize the impact of your partner's movement

Made for

Ideal for all sleep positions

Materials & Construction
  • Fall into refreshing comfort with a Mattress Firm exclusive, Serta iSeries mattress. Featuring Carbon Fiber Memory Foam and a cool-to-the-touch MaxCold™ cover, it keeps you cool, cushioned, and comfortable, so you can wake feeling renewed. Plus, its responsive, 1025-density coil system conforms to every curve, so you feel supported all night.
  • MaxCold™ Cover provides direct, immediate cooling, straight from the mattress surface
  • Carbon Fiber Memory Foam cushions as it cools to relieve pressure and channel heat away from the body
  • Law Label Lookup Model Number: 500805378
Responsibly crafted
  • 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 mattresses are compatible with most frames, including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames.

We will ship your order using the fastest, safest, and most reliable method possible. When ordering directly through, most of our items will arrive to your home in 2-4 weeks. Typically, within 1 week of your order being placed, our delivery partner, RXO Logistics, will contact you to schedule out a delivery date and time based on when they expect to receive the product(s). Please note, we are not shipping to Alaska and Hawaii at this time.

You should be able to rely on the quality of your rest night after night. That is why we offer a 10-year limited warranty that covers manufacturing and workmanship defects. If you do notice anything out of the ordinary, simply email us or call us at 1-888-557-3782 and we’ll work with you to find a solution.

Any purchase directly from is covered under our 120-Day In-Home Trial. Starting on the day of delivery, we recommend sleeping on your new mattress for a minimum of 30 days to allow your body to adjust. In the event you decide this mattress isn't right for you, and you’re within the 120-Day In-Home Trial, contact us by phone or e-mail and we can coordinate a return. Please note that the 120-Day In-Home Trial applies only to purchases made on

Which level is best for you

A wooden bed with a Serta iSeries plush blue mattress, blue and beige pillows with a 12 inch white ruler to the right of the mattress and 4 blue snow flakes at the top

Standard: 1000 Series

Featuring a cool-to-the-touch cover, contouring foams, and a medium feel—ideal for all sleep positions

Starting at $1399

A wooden bed with a Serta iSeries blue mattress, and 2 beige pillows with a 12.5 inch white ruler to the right of the mattress and 4 blue snow flakes at the top

Enhanced: 2000 Series

Featuring a cool-to-the-touch cover, contouring foams, and a firm feel—great for stomach or back sleepers

Starting at $1699

A wooden bed with a Serta iSeries blue mattress, blue and beige pillows with a 13.5inch white ruler to the right of the mattress and 4 blue snow flakes at the top

Ultimate: 3000 Series

Featuring enhanced cooling, pressure-relieving upgrades, and medium and plush feels—ideal for all sleep positions

Starting at $2199

Why you’ll love the Serta iSeries

1. Cooling comfort

A cool-to-the-touch MaxCold™ cover provides immediate cooling, directly from the mattress surface, so you sleep and wake refreshed.

2. Contouring pressure relief

Carbon Fiber Memory Foam contours as it cools to relieve pressure and channel heat away from the body, so you sleep comfortably cool.

3. Sustainable support

A recycled fiber support base provides a sustainable base under the mattress core, so you feel supported all night.

Why buy Serta online?

120-Day In-Home Trial

Experience the mattress in your home for up to 120 days. If you’re not completely satisfied, you can exchange or return it for a refund.

Read more


You should be able to rely on the quality of your rest night after night. That’s why every Serta® mattress is backed by Serta’s 10-year limited warranty.

Read more

Free Shipping & Returns

All mattresses and foundations ship free and feature free returns when you order directly from

Read more


All Serta mattresses are designed and assembled in the USA, leveraging our 85 years of manufacturing expertise.

Read more

certipur-us® certified

Rest easy knowing Serta uses only CertiPUR-US® Certified Polyurethane Foam.

Read more

In Their Words

Very happy with my new mattress. I am impressed with the comfort this provides. I sleep more peaceful and well rested when I wake up. I love that i never feel to hot or cold while sleeping.

- CheleLee

The Serta logo

Verified Review

I love this mattress it is comfy great on the back I get a great nite sleep I don't wake up feeling like I have been hit by a Mack truck

- Janice1968

The Serta logo

Verified Review

Very comfortable. Not too soft nor too firm. I haven't gotten up sore from sleeping on the mattress. Feels like it mold in my body. If that makes sense.

- kathy81

The Serta logo

Verified Review

This bed is the most comfortable bed I have ever slept on. I actually wake up with no back pain and sleep through the night!

- Kyla

The Serta logo

Verified Review

Family, woman on the left, young son in the middle and man on the right laying on a mattress asleep

Try in stores

Want to try a Serta mattress before you commit? Use our Store Locator and enter your zip code to locate one of our authorized Serta retailers. Visit a store and take a rest to decide for yourself.

Mattress FAQs

What Firmness options are offered for the iSeries Hybrid Mattress? 

The iSeries Hybrid mattress comes with the option to choose between a Medium, Firm, or Plush feel depending on which model you choose. The iSeries Hybrid 1000 model comes in a Medium feel, the iSeries Hybrid 2000 model will come in a Firm feel, and the iSeries Hybrid 3000 models will have the option between a Medium or a Plush feel option.

How will my mattress be delivered? 

Our mattresses are manufactured and shipped directly from our manufacturing facility. When you are checking out, you will have the option to select White Glove Delivery for an additional fee, which includes set up in the room of your choice, as well as removal of an old mattress. You also have the option of complimentary Threshold Delivery, which includes delivery to your front door and will not include any setup or removal options. Both delivery options will require you to schedule delivery and require an adult to be present at the delivery time. Most deliveries occur within 2-4 weeks of the order being placed.

What are the benefits of 5-Zone support?

The goal of the 5-Zone support, which is found only in 3000 Hybrid Medium and Plush models, is to help align your spine while providing evenness of pressure relief for a supportive night’s sleep.           

With our 5-Zone support, we’ve increased those zones to provide total targeted body support for a more even weight distribution across the mattress. The additional support zones target added support at your lumbar and thighs through a firmer coil gauge.

Join our email list

Sign up for new arrivals, special offers and tips for better sleep.

There was an error. Please try again.

Privacy Notice

1 item added to cart

Serta iSeries Hybrid





Subtotal (1 item) $--.--

Shipping, Taxes, Recycling Fees $--.--

Calculated in checkout

Secure Checkout