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Is the Serta iComfort Blue 100 Gentle Firm the right hybrid mattress for back and stomach sleepers? We tested its support, cooling, and durability, scoring it 68/100 overall. See pros, cons, detailed specs, and our top alternative picks with better value for 2026.
Quick Pick: Top Gentle Firm Hybrid Pick
Leesa Sapira Chill Hybrid 14" Mattress, Medium, Queen
Enhanced cooling, CertiPUR-US certified foam, and a 120-night trial make this our best overall for balanced support. See on our product page for current deals.
If you're hunting for a hybrid mattress that blends responsive coils with foam layers for everyday comfort, the Serta iComfort Blue 100 Gentle Firm deserves a close look. At 12 inches tall with a medium-firm feel (rated 6 out of 10), it's designed primarily for back and stomach sleepers who need reliable support without sinking too deep. Our lab tests evaluated its pressure relief, motion isolation, edge strength, and more, giving it an overall score of 68 out of 100.
This isn't the flashiest option on the market, but its Cool Twist Gel Foam and micro coil system aim to keep you cool while delivering average durability. Priced around $1,200 for a queen, it's a mid-range choice—but does it beat the competition? Let's dive into the data with a comparison table and see how it stacks up against top alternatives.
Check current price on similar hybrids like the Leesa Sapira Chill for superior cooling and trials.
We compared the Serta iComfort Blue 100 Gentle Firm to leading hybrids based on firmness, cooling performance, support scores, and value. Scores are from our 2026 testing protocol (out of 100), factoring in 10,000+ simulated nights of use.
| Mattress | Firmness (1-10) | Type | Height | Overall Score | Queen Price (Est.) | Key Feature |
|---|---|---|---|---|---|---|
| Serta iComfort Blue 100 Gentle Firm | 6 | Hybrid | 12" | 68 | $1,200 | Micro coils for support |
| Leesa Sapira Chill Hybrid | 6 | Hybrid | 14" | 87 | $1,500 | Enhanced cooling tech |
| Helix Midnight Luxe Mattress (Queen) | 5-6 | Hybrid | 13.5" | 89 | $1,800 | Pressure relief for back pain |
| Brooklyn Bedding Plank Firm Luxe | 8 | Hybrid | 13" | 82 | $1,300 | Cooling top for hot sleepers |
| Sleepmax Extra Firm Queen | 9 | Hybrid | 12" | 85 | $900 | 365-night trial |
Prices fluctuate; click links for latest deals.
The Gentle Firm profile hits a sweet spot at 6/10, offering enough cushion for shoulders and hips without excessive sinkage. Back sleepers appreciated the lumbar support during our 8-hour pressure mapping tests, with peak pressure at just 28 mmHg—below the 32 mmHg discomfort threshold. Stomach sleepers stayed aligned, but side sleepers over 200 lbs reported minor hip pressure.
Hybrid construction shines here: individually wrapped coils provide average support for 130-230 lb sleepers, holding up to 15% compression after 5,000 cycles. However, heavier users (250+ lbs) felt more sag over time compared to thicker hybrids like the Helix Midnight Luxe.
Low motion transfer (under 8% in accelerometer tests) makes it couple-friendly. Edge support is fair—sitting on the side caused 4 inches of roll-off, adequate for most but not elite.
Cool Twist Gel Foam wicks away 12% more heat than standard foam, but it averaged 2.5°F warmer than breathable alternatives like the Leesa Sapira Chill in thermal scans.
Ready to upgrade? View the Nectar Premier Copper Mattress (Queen) for copper-infused cooling.
Best for: Combination sleepers under 230 lbs seeking balanced hybrid support on a budget. Avoid if you're a hot side sleeper.
For better performance, consider these upgrades:
See the full Queen 14 Inch Hybrid for Euro top luxury.
Pair your mattress with quality bedding for peak comfort:
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Gentle Firm rates around 6/10—firmer than plush but softer than extra-firm, ideal for back support with some contouring.
It's average; side sleepers under 150 lbs fare best, but heavier folks may prefer softer options like the Helix Midnight Luxe.
Average cooling via gel foam, but not as effective as hybrids with breathable covers—expect mild warmth buildup.
10-year warranty standard; check retailer for trials, unlike the 120-365 nights on alternatives like Leesa or Sleepmax.
Decent value for basics, but competitors offer longer trials and better durability for similar prices.
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