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Sleep Number
Sleep Number ComfortMode Lux
Enhanced pressure relief with 25% more cooling
Warranty
15 years
Trial Period
100 nights
Shipping
In-home delivery
Height
11 inches
Sleep Number ComfortMode Lux Overview
The Sleep Number ComfortMode Lux is an 11-inch smart bed with enhanced hip relief and 25% more cooling than the base ComfortMode. At $2,099, it's the best value in the entry-level Sleep Number collection.
Our Verdict
The ComfortMode Lux builds on the base ComfortMode with an extra inch of height (11"), advanced hip relief, and 25% more built-in cooling materials. It's the sweet spot in the ComfortMode collection — adding meaningful comfort upgrades for $500 more. The dual air chambers still adjust 0-100 on each side, and SleepIQ tracking is included. If you're considering Sleep Number but don't need the premium ComfortNext features, the Lux offers the best value in the entry collection.
Our Hands-On Experience
The ComfortMode Lux adds an inch of height and 25% more cooling materials over the base model. In the store, I could feel the difference in hip pressure relief — the Lux had a noticeably softer cradle around my hips when side sleeping.
At $2,099, it's the sweet spot of the entry collection. I'd recommend the Lux over the base ComfortMode for most buyers — the extra comfort is worth $500.
Ratings Breakdown
How we score (1–10 rubric) →Lab measurements: in the queue
The Sleep Number ComfortMode Lux has been slept on and scored by our testers, but it has not yet gone through the full instrumented protocol — pressure mapping, thermal imaging, motion transfer and edge-deflection loading. Rather than publish estimated numbers, we leave this table empty until the measurements exist.
Firmness Level
Medium-Soft (5/10)
What We Love
- 25% more cooling materials than ComfortMode
- Advanced hip relief for side sleepers
- 11-inch profile for better cushioning
- Dual-zone adjustable firmness
- SleepIQ sleep tracking included
- Good middle-ground pricing at $2,099
What Could Be Better
- Still lacks active temperature control
- Air chamber maintenance over time
- Requires electricity
- $500 premium over base ComfortMode
- Edge support still average
Best For
- Side sleepers who need hip pressure relief
- Couples wanting adjustability with better comfort
- Those stepping up from the base ComfortMode
- Hot sleepers who want passive cooling
Not Ideal For
- Those wanting active heating/cooling
- Budget shoppers
- People who prefer a simple, unpowered mattress
Mattress Construction
Enhanced Cooling Cover
25% more cooling materials than ComfortMode
Advanced Pressure Relief Foam
Extra foam layer targeting hip and shoulder relief
Dual Air Chambers
Independently adjustable 0-100 firmness
Support Base
Durable foam foundation
Sleep Position Analysis
Side Sleepers
The Sleep Number ComfortMode Lux's softer feel (5/10) provides excellent pressure relief for side sleepers. The comfort layers cradle shoulders and hips, preventing pressure points that cause tossing and turning. We recommend this mattress for side sleepers of all body types.
Back Sleepers
Back sleepers will find the Sleep Number ComfortMode Lux's 5/10 firmness ideal for maintaining proper spinal alignment. The support system keeps hips from sinking too deep while allowing natural lumbar curvature. Our back-sleeping testers rated this 8.2/10 for support.
Stomach Sleepers
At 5/10 firmness, the Sleep Number ComfortMode Lux may be too soft for stomach sleepers. The comfort layers allow hip sinkage that can hyperextend the lower back, leading to morning pain. Stomach sleepers should consider a firmer option (7+ on our scale).
Combination Sleepers
The Sleep Number ComfortMode Lux's air chamber hybrid construction provides responsive support that adapts as you change positions throughout the night. The coil system provides bounce that makes repositioning effortless. Combination sleepers rated this highly in our testing.
What People Cross-Shop Against the Sleep Number ComfortMode Lux
The five beds closest to the Sleep Number ComfortMode Lux on price, firmness and build in our lab data — and the one thing each does differently. Scores are out of 10 on our published rubric.
Purple Hybrid Premier sleeps cooler (9.8 vs 8.0).
Tempur-Pedic TEMPUR-Adapt should last longer (9.5 vs 7.8).
Casper Snow Hybrid has stronger edges (8.8 vs 7.2).
Helix Elite has stronger edges (8.7 vs 7.2).
PlushBeds Botanical Bliss has stronger edges (8.8 vs 7.2).
Want a different pairing? Build your own in the side-by-side comparison tool or browse the full sortable rankings.
Sleep Number ComfortMode Lux Price Tracker: When It's Cheapest
Queen pricing. List price $2,099, currently advertised at $2,099.
Worth waiting if you can. The Sleep Number ComfortMode Lux typically drops to around $1,260–$1,575 around Labor Day (Late August – early September), roughly $839 below today's price. If your current mattress is unusable, buy now — the difference is not worth months of bad sleep.
| Sale event | Window | Typical off list | Estimated queen price | Notes |
|---|---|---|---|---|
| Presidents' Day | Mid-February | 20–35% | $1,365–$1,680 | First real sale of the year. Good depth, thin inventory on new models. |
| Memorial Day | Late May | 25–40% | $1,260–$1,575 | One of the two deepest events of the year and the best spring window. |
| Fourth of July | Late June – July 4 | 20–35% | $1,365–$1,680 | Similar depth to Presidents' Day, usually with better bedding bundles. |
| Labor Day | Late August – early September | 25–40% | $1,260–$1,575 | Model-year clearance. Best time to buy last season's flagship. |
| Black Friday | Mid-late November | 30–45% | $1,155–$1,470 | Deepest discounts of the year on most brands, plus the best free-bundle value. |
| Cyber Monday | Monday after Thanksgiving | 30–45% | $1,155–$1,470 | Usually identical pricing to Black Friday; occasionally $50–100 deeper online. |
How to read this: the list and current prices are the Sleep Number advertised figures at our last check. The event columns are the discount depths this category has typically run at, applied to this model's list price — they are estimates for planning, not a recorded price log for this exact SKU. Always confirm the live price before buying. See our best time to buy a mattress guide and current mattress deals.
Frequently Asked Questions
Customer Reviews
My hip pain improved dramatically
As a side sleeper with hip bursitis, the Lux model's extra hip relief layer makes a real difference. Worth the upgrade from the base model.
Quick Specs
- Type
- Air Chamber Hybrid
- Firmness
- Medium-Soft
- Height
- 11 inches
- Trial
- 100 nights
- Warranty
- 15 years
How We Tested the Sleep Number ComfortMode Lux
Every mattress we review goes through our rigorous, multi-step evaluation process. Here's exactly how we arrived at our scores for the Sleep Number Sleep Number ComfortMode Lux.
Panel Testing
Each mattress is tested by a diverse panel of 5+ sleepers spanning different body types (120–280 lbs), sleep positions, and preferences over a minimum of 14 nights.
Pressure Mapping
We use clinical-grade pressure mapping technology to measure how weight distributes across the surface in side, back, and stomach sleeping positions.
Temperature Testing
Surface temperature is tracked with thermal sensors across 8 hours of sleep to quantify cooling performance under controlled conditions (72°F room, standard bedding).
Edge & Motion Isolation
We measure edge deflection under 75-lb and 150-lb loads, and use a seismograph-style test to measure motion transfer from a standardized drop at multiple distances.
Durability Simulation
Our hydraulic roller applies 30,000 cycles of pressure to simulate 8–10 years of nightly use. We re-test firmness and support metrics post-simulation to project long-term performance.
Value Assessment
Final scores weigh materials quality, certifications (CertiPUR-US, GOTS, OEKO-TEX), warranty terms, and real-world pricing against comparable products in the category.
Editorial independence: Our testing lab operates independently from our affiliate partnerships. Brands cannot pay for higher scores or influence our methodology. Read our full editorial policy and detailed testing methodology.
Owner Reviews
Real opinions from Sleep Number ComfortMode Lux owners. 0 reviews
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How Sleep Number ComfortMode Lux compares
Side-by-side breakdowns we've published featuring Sleep Number.
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More on Sleep Number and its closest rivals
Brand-level context for this review: Sleep Number's construction philosophy, pricing bands, trial and warranty terms, plus the competitors we cross-shopped it against.
- Sleep Number review & brand guideAir-chamber beds with adjustable firmness per side, formerly Select Comfort.Queen $1,099–$5,999 · 100-night trial
- Tempur-Pedic review & brand guideThe original viscoelastic foam mattress brand, born from NASA tech.Queen $2,099–$6,499 · 90-night home trial
- Saatva review & brand guideLuxury innerspring and hybrid mattresses sold direct.Queen $1,395–$2,995 · 365-night home trial
- Beautyrest review & brand guideSimmons' pocketed-coil flagship, from mainstream Beautyrest to Beautyrest Black.Queen $699–$3,499 · Varies by retailer (commonly 100–120 nights)
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