Serta iSeries Hybrid 3000 Medium (2021-2024)
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Serta iSeries Hybrid 3000 Medium (2021-2024) vs. Other Beds
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GoodBed Expert Review
Our Take on Serta iSeries Hybrid 3000 Medium (2021-2024)

Founder of GoodBed, Leading Mattress Expert
- Want a medium-soft mattress (i.e., just a little softer than average)
- Are mainly a side sleeper
- Can sometimes be disturbed by other movements in the bed (motion isolation is very good)
- Prefer an above average amount of 'memory feel'
- Enjoy being hugged or cradled by your mattress
- Would like a mattress that performs very well when used with an adjustable base
- Like a little bounce in your mattress, but not much
- Are a stomach sleeper, especially if you weigh more than 250 lb
- Often sleep close to the edge of your bed (edge support is just OK)
- Have a strong tendency to sleep hot (temperature regulation is pretty good, but not the best)
- Tend to have difficulty changing positions during the night (though ease of repositioning is still OK)
- Want a natural or organic mattress
Materials & Construction
Cover | Stretch cover with PCM ("Max Cold") |
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Comfort Layers |
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Transition Layers | 0.5″ gel foam ("EverCool Fuze") |
Support Layers |
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Total Thickness | 13.5'' |
Nearby Stores
Near Columbus, OH (43215)

- Free delivery
- 90-day return policy
- Financing available

- Free delivery ($999+)
- 120-day return policy
- Lowest price guarantee
- Financing available
Frequently Asked Questions
Serta iSeries Hybrid 3000 Medium (2021-2024)
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In our evaluation of the Serta iSeries Hybrid 3000 Medium (2021-2024) mattress, we found it to be a Medium-Soft (6) on the GoodBed rating scale (1= firmest, 9 = softest).
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Yes, the Serta iSeries Hybrid 3000 Medium (2021-2024) mattress is adjustable base compatible. This means it is designed to be used on an adjustable base without incurring damage or voiding the warranty. In our review of this mattress, we tested it on an adjustable base to look for any adverse effects as the head and foot are elevated, and to see how well it conforms to the contours of the base both with and without the weight of a sleeper. Overall, we found the iSeries Hybrid 3000 Medium (2021-2024) to have very good adjustable base compatibility.
Reviews iSeries Hybrid 3000 Medium (2021-2024)
Additional Information
General Description
With a unique balance of support, cooling comfort and state-of-the-art hybrid technology, the Serta iSeries Hybrid 3000 mattress is the best of both worlds (and then some). It boasts a 13.5" profile and 4" of advanced memory foam, combined with individually wrapped coils for universal comfort and rejuvenating support. Plus, its medium feel is great for all sleepers—side, back and even stomach. On top, its high-performance Max Cold cover is cool to the touch. Underneath, a 1” layer of high-density Carbon Fiber Memory Foam and Serta’s exclusive UltraCold System work to absorb excess heat, channeling it away from your body for supremely cool sleep. Next, its Hybrid Support System is precisely engineered with individually wrapped, 1025-density coils that provide curve-hugging support from head to toe. Plus, Serta’s BestEdge Foam Encasement offers extra reinforcement around the edges of the mattress, extending your sleep surface.
Comfort Foam Layers
- 1.5" of EverCool Supreme Plush Memory Foam.
- 1.5" of Deep Reaction Memory Foam.
- 0.5" of EverCool Fuze Gel Foam give you a weightless, cradling feeling all over your body for immense pressure point relief and support.
Max Cold Cover & UltraCold System
- One touch of the Max Cold Cover and you’ll discover what upgraded cooling technology in a mattress is. It’s exactly what the name says—maximum cold-to-the-touch softness that keeps even the hottest sleepers comfortable night after night. Serta’s exclusive UltraCold System is a phase change material that draws excess heat away as you sleep, stores it, and then slowly releases it as you move or your temperature drops. This keeps your body temperature from spiking or plummeting—and all the fussiness that comes with it—for a more satisfying sleep.
1025 iSeries Hybrid Support System
- In this advanced, 1025-coil-density innerspring system, individually wrapped coils work independently to conform to every curve and provide durable, firm support, and it provides motion isolation for less disruption as you or your partner shift and move. Plus, each 8" coil is individually wrapped for a quieter, more peaceful sleep.
Mattress Specifications:
- Cover Details: maximum cold-to-the-touch softness that keeps even the hottest sleepers comfortable night after night.
- First Comfort Layer Details: Serta's exclusive UltraCold System is a phase change material that draws excess heat away as you sleep, stores it, and then slowly releases it as you move or your temperature drops.
- Second Comfort Layer Details: 1.5" of EverCool Supreme Plush Memory Foam.
- Third Comfort Layer Details: 1.5" of Deep Reaction Memory Foam.
- Fourth Comfort Layer Details: 0.5" of EverCool Fuze Gel Foam give you a weightless, cradling feeling all over your body for immense pressure point relief and support.
- First Support Layer Details: 1025-coil-density innerspring system, individually wrapped coils work independently to conform to every curve and provide durable, firm support, and it provides motion isolation for less disruption as you or your partner shift and move.
- Second Support Layer Details: 1" Serta Support Foam
About This Model
Status | Discontinued |
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Line | Serta iSeries (2021-2024) |
Comfort Level | Medium-Soft |
Surface Type | Unquilted |
Support Type | Innerspring |
Build Details |
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Corrections
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