Serta iComfort Blue 100 CT Gentle Firm Mattress Review

Serta iComfort Blue 100 CT Gentle Firm mattress in a room

The iComfort Blue 100 CT Gentle Firm is a firmer feeling mattress that tested pretty decently. Our mattress experts test every Serta iComfort mattress model in our testing facility and you can see the results and our review for the Blue 100 CT Gentle Firm model below:

Comfort Scale Rating

The Blue 100 CT Gentle Firm mattress has a firmer feeling that we rated 3.5 on our 10 point Comfort Scale (a 1 is hard, 10 is softest). This rating is on the firmer side, and will only appeal to you if you prefer firmer feeling beds. Serta labeled it “Gentle” Firm, and as the name implies, it’s softer than the Blue 300 CT Firm model.

iComfort Blue 100 CT Gentle Firm Expert Video Review

Here’s our quick Video Review. It highlights the features, benefits and our impression.

Pros & Cons

PROS CONS
  • Minimal motion transfer
  • Premium materials including TempActiv Gel Memory Foam
  • On the more affordable end of a premium brand
  • Edge support
  • Very popular and trusted brand
  • All-foam may not appeal to those who like a traditional springy feel
  • May take a few weeks to fully break-in
  • May take a few days for foam smell to go away
  • A firmer mattress, it will not appeal to you if you like softer comfort

Pressure Test Results

We pressure tested the Blue 100 CT Gentle Firm mattress with small, average and large body size people on their sides and back sleeping positions. We do this to give you an idea of what kind of support and comfort you can expect. (Learn how we test)

The Blue 100 CT Gentle Firm mattress was rated 'Good' for all body sizes and sleeping positions except large-sized side sleepers. It did a great job reducing pressure points for back sleepers and was decent for side sleepers. Pressure points are important because they cause discomfort during your sleep and that leads to moving around and interrupting the quality of your sleep. The support a mattress provides in key areas like the lower back is another important area to pay attention too. This one didn't have the best support in all cases, which is probably why it didn't receive 'Recommended' ratings. This bed only received a 'Recommended' rating for average-size side sleepers, as it shows a good combination of support and pressure relief.

BACK SLEEPER SIDE SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Large side sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Average side sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Petite side sleeper heatmap Avg Pressure: mmHg - Area: inches2
BACK SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large back sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average back sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite back sleeper heatmap Avg Pressure: mmHg - Area: inches2
SIDE SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large side sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average side sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite side sleeper heatmap Avg Pressure: mmHg - Area: inches2

The Blue 100 CT Gentle Firm Features in Detail

Blue 100 CT Gentle Firm cutaway

  1. 1. TempActiv Touch Cover

    A cool-to-the-touch cover keeps you cool throughout the night, for deeper rest.

  2. 2. TempActiv Gel Memory Foam

    TempActiv is a memory foam that’s been infused with millions of gel beads. The gel beads help remove the excess heat your body creates so you can sleep cooler.

  3. 3. EverCool Fuze Gel Memory Foam

    Breathable memory foam that has gel infused into the foam to provide you a softer, conforming comfort layer.

  4. 4. Ultimate Edge Foam Encasement

    The foam core supports the comfort layers above. iComfort mattresses also have edge support to reinforce the edge of the bed which allows you to sit comfortably on the edge of the mattress and sleep edge-to-edge.

Comfort Depth Video

We measured how far your hips and shoulders sink into the Blue 100 CT Gentle Firm mattress with different body types.

Andrew's Comfort View

Aaron's Comfort View

Richards's Comfort View

Warranty

The iComfort Blue 100 CT Gentle Firm mattress comes with a 10-year warranty against factory defects.

Conclusion

The iComfort Blue 100 CT Gentle Firm is a good bed that offers a strong value and was rated pretty well in our testing.

This mattress has some premium features in its construction that are also found in more expensive iComfort models. Specifically, the main feature is the TempActiv Gel Memory Foam, which is a cooling and conforming foam made by Serta. Another example is the Ultimate Edge Foam Encasement. Most foam mattresses don’t offer edge support, especially at this price. (The Blue 100 CT Gentle Firm is $1,099 in a queen size.)

In addition to the features we like, we pressure tested the mattress as explained above and it performed okay. It minimized pressure and provided decent support, so it'll help you sleep restfully without pain. Our tests show that it doesn't perform as well for larger-sized side sleepers though, so I wouldn't recommend it to them. 

It's pretty affordable for an iComfort mattress. So with the good test results and features we discussed, you get a mattress we recommend for those who like a firm feel. There are higher-end models with more features that you can get. But at this price, if you like a firmer feeling mattress, then the Blue 100 CT Gentle Firm is a good choice. If you like this bed, but generally prefer a softer mattress, the Blue 300 CT Plush mattress could be a good fit.

See the bed

Serta iComfort Blue 100 CT Gentle Firm Mattress Specifications:

Product Name
Queen Price

$1,199

Brand
Serta
Mattress Comfort
Firm
Comfort Scale Number
3.5
Height
9.75"
Warranty
Back Support System
  • Serta Foam Core
Quilt Top of Mattress
  • TempActive Touch Cover
Comfort Padding Layers
Edge Support
Recommended For Side Sleepers Who Weigh
  • 134-218 lbs
  • 111-135 lbs
Recommended For Back Sleepers Who Weigh
  • 210-273 lbs
  • 134-218 lbs
  • 111-135 lbs

About The Author Joe Nashif

A jack of all trades in the mattress industry, Joe is a merchandiser who’s seen the changes in the products and trends for many years. Active in Brazilian Jui Jitsu, along with related injuries, he enjoys resting at home with family, too.