The Serta Iseries Hybrid 4000 Plush is a discontinued 14.5-inch inch hybrid innerspring plush soft tight-top mattress. It has several primary layers, including a innerspring coils support layer below, and a gel memory foam comfort layer (that sits directly above the support layer) above.
This specific model from Serta is very difficult to find online (and is potentially discontinued).
As a result - we strongly recommend considering our #1 pick for the Best Mattress of 2022 - Saatva.
Consider Serta Iseries Hybrid 4000 Plush Review if
Skip Serta Iseries Hybrid 4000 Plush Review if
#1 Best Mattress of 2022! ➜
Firmness, Feel & Comfort of the Serta Iseries Hybrid 4000 Plush Review
The Serta Iseries Hybrid 4000 Plush is about a 3-4 on a 1-10 firmness scale (which makes it ideal for people that exclusively sleep on their side. The gel memory foam comfort layer does a decent job supporting your primary sensitive pressure points - like your hips, shoulders & neck.
We don't recommend the Serta Iseries Hybrid 4000 Plush if you're a back & stomach sleeper. Back & stomach sleepers typically get a much better night's sleep on a firmer mattress (closer to a 7-9 on a 1-10 firmness scale).
We also don't recommend the Serta Iseries Hybrid 4000 Plush if you're on the heavier side (since it's a plush soft comfort level). You'll likely sink way too far into the mattress. Sinking (as a heavy sleeper) significantly sacrifices comfort and support.
#1 Best Mattress of 2022! ➜
Construction & Design of the Serta Iseries Hybrid 4000 Plush Review
The Serta Iseries Hybrid 4000 Plush is constructed with innerspring coils as a base support layer & a gel memory foam top layer.
Additionally, the tight-top does a good job adequately supporting your weight on the mattress and providing a wide sleep surface (and 'okay' edge support).
The tight-top + hybrid innerspring combination is a relatively standard mattress design in 2022 (even if this is an older, potentially discontinued model).
Support & Motion Isolation of the Serta Iseries Hybrid 4000 Plush Review
Support & motion isolation for Serta Iseries Hybrid 4000 Plush is fair (not good).
The bottom innerspring coils combined with the top gel memory foam do a fine job dissipating motion transference across the mattress.
It's safe to say the Serta Iseries Hybrid 4000 Plush is likely built to last 3-5+ years (before it's time to replace it). This is one of the main reasons why it's difficult to recommend this mattress.
Availability of the Serta Iseries Hybrid 4000 Plush Review
The Serta Iseries Hybrid 4000 Plush is likely Serta Iseries Hybrid 4000 Plush in 2022.
This is why we strongly recommend checking out Saatva Mattress. They're out top pick for the best mattress of 2022.
Final Thoughts on the Serta Iseries Hybrid 4000 Plush Review
We resolutely do not recommend the Serta Iseries Hybrid 4000 Plush if you want a (1) premium mattress that's (2) built-to-last, (3) easy-to-find online, and (4) has great price-to-performance.
Also, it's potentially discontinued (which may make it even more difficult to find online).
Difficult-to-find mattresses online usually (not always) have notoriously bad warranties and trial periods, in general.
As we mentioned previously - we encourage you to consider Saatva Mattress. They're universally considered one of the best brands money can buy in 2022. They're a luxury mattress delivered & setup in your home, with a generous trial period and a 15-year warranty. They also happen to have an incredibly comfortable and premium mattress, built to last 10-15 years.
Expert Summary
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Best 10’s Verdict
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The Serta Iseries Hybrid 4000 Plush is a discontinued 14.5-inch inch hybrid innerspring plush soft tight-top mattress. It has several primary layers, including a innerspring coils support layer below, and a gel memory foam comfort layer (that sits directly above the support layer) above.
This specific model from Serta is very difficult to find online (and is potentially discontinued).
As a result - we strongly recommend considering our #1 pick for the Best Mattress of 2022 - Saatva.
Consider Serta Iseries Hybrid 4000 Plush if
Skip Serta Iseries Hybrid 4000 Plush if
Firmness, Feel & Comfort of the Serta Iseries Hybrid 4000 Plush
The Serta Iseries Hybrid 4000 Plush is about a 3-4 on a 1-10 firmness scale (which makes it ideal for people that exclusively sleep on their side. The gel memory foam comfort layer does a decent job supporting your primary sensitive pressure points - like your hips, shoulders & neck.
We don't recommend the Serta Iseries Hybrid 4000 Plush if you're a back & stomach sleeper. Back & stomach sleepers typically get a much better night's sleep on a firmer mattress (closer to a 7-9 on a 1-10 firmness scale).
We also don't recommend the Serta Iseries Hybrid 4000 Plush if you're on the heavier side (since it's a plush soft comfort level). You'll likely sink way too far into the mattress. Sinking (as a heavy sleeper) significantly sacrifices comfort and support.
#1 Best Mattress of 2022! ➜
Construction & Design of the Serta Iseries Hybrid 4000 Plush
The Serta Iseries Hybrid 4000 Plush is constructed with innerspring coils as a base support layer & a gel memory foam top layer.
Additionally, the tight-top does a good job adequately supporting your weight on the mattress and providing a wide sleep surface (and 'okay' edge support).
The tight-top + hybrid innerspring combination is a relatively standard mattress design in 2022 (even if this is an older, potentially discontinued model).
Support & Motion Isolation of the Serta Iseries Hybrid 4000 Plush
Support & motion isolation for Serta Iseries Hybrid 4000 Plush is fair (not good).
The bottom innerspring coils combined with the top gel memory foam do a fine job dissipating motion transference across the mattress.
It's safe to say the Serta Iseries Hybrid 4000 Plush is likely built to last 3-5+ years (before it's time to replace it). This is one of the main reasons why it's difficult to recommend this mattress.
Breathability & Heat Transfer For Serta Iseries Hybrid 4000 Plush
Eco-Friendliness For Serta Iseries Hybrid 4000 Plush
Availability of the Serta Iseries Hybrid 4000 Plush
The Serta Iseries Hybrid 4000 Plush is likely Serta Iseries Hybrid 4000 Plush in 2022.
This is why we strongly recommend checking out Saatva Mattress. They're out top pick for the best mattress of 2022.
Pricing & Policies For Serta Iseries Hybrid 4000 Plush
Shipping, Delivery & Returns For Serta Iseries Hybrid 4000 Plush
Warranty & Exchanges For Serta Iseries Hybrid 4000 Plush
Where Can I Buy The Serta Iseries Hybrid 4000 Plush
Returns, Exchanges & Warranty For Serta Iseries Hybrid 4000 Plush
Editor's Conclusion - Should I Buy A Serta Iseries Hybrid 4000 Plush
We resolutely do not recommend the Serta Iseries Hybrid 4000 Plush if you want a (1) premium mattress that's (2) built-to-last, (3) easy-to-find online, and (4) has great price-to-performance.
Also, it's potentially discontinued (which may make it even more difficult to find online).
Difficult-to-find mattresses online usually (not always) have notoriously bad warranties and trial periods, in general.
As we mentioned previously - we encourage you to consider Saatva Mattress. They're universally considered one of the best brands money can buy in 2022. They're a luxury mattress delivered & setup in your home, with a generous trial period and a 15-year warranty. They also happen to have an incredibly comfortable and premium mattress, built to last 10-15 years.
