by M7 was quite hyped when it was introduced. However, it was not just the cloud-like memory foam comfort but much more to explore. Adjustable firmness was the most exclusive feature of M7. The air chambers were the innovative mechanics that allowed variations in firmness on both sides of the mattress.
Moreover, the extensive memory foam layers cuddle the sleeper so that anyone lying on it is impressed. The CoolFit technology regulates the temperature, keeping you cool through the seasons. An incredible 15 years warranty and 100-night free trial are enough for M7 to become your favorite.
However, the price of the mattress is a sound investment because it is undoubtedly on the luxury side. Therefore, we recommend a more economical yet superb mattress – Saatva Classic.
Saatva Solaire
9.0/10
If adjustable firmness is the reason you are reading this review, Saatva Solaire is the closest affiliate alternative to compare first.
Sleep Number m7 , Memory Foam Series flagship
Memory foam comfort layer + DualAir + ActiveTemp climate
- Sleep Number m7 , Memory Foam Series with a 4-inch CoolFit memory foam top + DualAir chambers. Brings classic memory foam sink-in feel to the smart bed category.
- ActiveTemp climate , the m7 includes Sleep Number's ActiveTemp cooling system, addressing the heat-retention complaint that limits traditional memory foam.
- Who it's for , couples who want memory foam contouring but need per-side firmness adjustment via DualAir. Solo memory-foam fans can save by choosing the m5 instead.
100-night trial · Free in-home delivery · 25-year limited warranty
Sleep Number m7 is the Memory Foam Series flagship , a 4-inch CoolFit memory foam comfort layer over DualAir chambers, with ActiveTemp climate built in. Sweet spot for couples who want classic memory foam sink-in but also need per-side firmness adjustment that traditional foam mattresses cannot offer.
M7 was quite hyped when it was introduced. However, it was not just the cloud-like memory foam comfort but much more to explore. Adjustable firmness was the most exclusive feature of M7. The air chambers were the innovative mechanics that allowed variations in firmness on both sides of the mattress.
Moreover, the extensive memory foam layers cuddle the sleeper so that anyone lying on it is impressed. The CoolFit technology regulates the temperature, keeping you cool through the seasons. An incredible 15 years warranty and 100-night free trial are enough for M7 to become your favorite.
Our top mattress recommendation
Ongoing 2026 promotions: up to $625 off sitewide, plus an additional $225 off orders $1,000+ for military, veterans, first responders, teachers, nurses, healthcare, and government employees via ID.me. 25-year limited warranty included.
Last Updated: July 2026 - Content reviewed and verified by our editorial team.
100-night trial · 25-year limited warranty · Free in-home delivery
M7 was quite hyped when it was introduced. However, it was not just the cloud-like memory foam comfort but much more to explore. Adjustable firmness was the most exclusive feature of M7. The air chambers were the new mechanics that allowed variations in firmness on both sides of the mattress.
Also, the extensive memory foam layers cuddle the sleeper so that anyone lying on it is impressed. The CoolFit technology regulates the temperature, keeping you cool through the seasons. An incredible 15 years warranty and 100-night free trial are enough for M7 to become your favorite.
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M7 was quite hyped when it was introduced. However, it was not just the cloud-like memory foam comfort but much more to explore. Adjustable firmness was the most exclusive feature of M7. The air chambers were the new mechanics that allowed variations in firmness on both sides of the mattress.
Also, the extensive memory foam layers cuddle the sleeper so that anyone lying on it is impressed. The CoolFit technology regulates the temperature, keeping you cool through the seasons. An incredible 15 years warranty and 100-night free trial are enough for M7 to become your favorite.
The #1 alternative we recommend
Pros and Cons
What We Like
- Luxury innerspring with excellent lumbar support
- Multiple firmness options available
- Free white-glove delivery and mattress removal
- 100-night trial and 25-year limited warranty
What Could Be Better
- Higher price than many online brands
- Heavier than foam mattresses
- Not compressed in a box
- Some off-gassing possible initially
Who We Recommend Sleep Number M7 Mattress for Those Who
- Are hot sleepers
- Have sleeping partners with different sleeping patterns
- Love memory foam
- Are impressed with the new technology it offers
Avoid Sleep Number M7 Mattress if:
- You are on a budget
- Hi-Tech app management is not your forte.
Comfort & Firmness
The Sleep Number M7 can provide dual adjustment of firmness. So, regardless of your side, it can go from 1 to 10 on the firmness scale.
Memory foam has pressure-relieving qualities. The cooling and gel-infused versions keep you cool throughout the night. It provides its sleepers with cradling and adjusting to the shape and weight of the body. This escalates the comfort level by tenfolds.
Performances
The mattress performs well with advanced technology providing the sleeper with ultimate comfort. You can have your firmness on your particular sleeping side. The technology evaluates your comfort level. There is a lot more to this mattress that backs its great performance.
Is Sleep number M7 Good Mattress for Back Pain?
The Sleep Number M7 is an excellent mattress for back pain. The usual cause of back pain every morning is sleeping on the wrong firmness. Its firmness is only partially suitable for your sleeping style. M7 eliminates all the issues by letting you adjust the firmness to counter back aches and joint pains.
Sagging and Edge Support
The Sleep Number M7 is enclosed in a Polyester and Rayon covering that protects the mattress. It also helps with edge support. Memory foam may be prone to sagging because of its impression-bearing properties. However, the 4-inch thickness puts the matter to rest because it makes sagging highly likely.
Motion Isolation
The M7 comprises two air chambers on each side of the mattress. This ensures that any motion originating on one side remains on that site. The memory foam absorbs any movement generated. The mattress overall scores excellently well with motion isolation.
Sleeping Position and Weight
A different sleeping style means you need different mattress firmness. The Sleep Number M7 excels in providing alternating firmness with its air chambers. You can inflate it to complete a firmer sleeping surface and vice versa. Anyone who sleeps on their stomach and back will need the firm variant.
As for the weight of individuals, it shouldn't be a bother. The mattress has a reliable memory foam thickness for any body weight.
Breathability & Heat Transfer
The mattress has many memory foam layers, but each layer aims to keep the sleeper cool. The 4 inches of memory foam is of cooling quality. The extra 1 inch has cooling gel infused to keep the layer above the cooler. There is also CoolFit technology within the memory foam to enhance the cooling effect.
The mattress's cover is porous and breathable, adding to the softness. Overall the mattress is built to resist heat and favor hot sleepers.
Durability
A mattress giving you 15 years of warranty must have remarkable lasting properties. Considering the quality of the materials, the high cost, and the construction, the mattress tends to be durable. It has an extra support layer below the air chambers, increasing the mattress's height.
What is the Sleep Number M7 Mattress Made of?
- Cover - A Sleep Number unique with excess softness and comfort. Gives a smooth sinking feeling for instant pleasure. It is made of Polyester and Rayon fabric to provide breathability.
- Cooling Foam: With CoolFit technology, the 4-inch foam layer keeps cool. It conforms to your body shape, giving you a hugging feeling. There are infused gels to absorb body heat and keep you from sweating.
- Air Chambers - Inflating and deflating air chambers to alter firmness. These air chambers are connected to hose pipes which allow air to enter and exit according to your settings. The amount of air helps change the firmness of the mattress. Mattresses with two chambers will enable a shift of firmness on both sides of the mattress.
- Support Layer - 2 inches of foam layer to support the air chambers and the sleeper's body. It also helps the mattress gain extra height.
Is Sleep Number M7 Mattress Flippable?
No, the Sleep Number M& is not flippable because of its air chambers. A layer supports the air chambers below, but the top of the mattress has 4-inch thick memory foam. The mattress is assembled in a particular way and cannot be flipped.
Does Sleep Number M7 Mattress Come in a Box?
Sleep Number M7 or other Sleep Number mattresses do not arrive in a box.
Is Sleep Number M7 Mattress Usable with an Adjustable Bed?
Yes, Sleep Number M7 mattress can be used on an adjustable base.
Is Sleep Number M7 Mattress in the USA?
Yes, Sleep Number mattress is based in California, USA.
Price Range
| Size | Dimensions | Price |
| Twin XL | 38″ x 80″ | $2,749 |
| Full | 54″ x 75″ | $3,024 |
| Queen | 60″ x 80″ | $3,199 |
| King | 76″ x 80″ | $3,899 |
| Split King | 76″ x 80″ | $4,999 |
| FlexTop King | 76″ x 80″ | $4,999 |
| Cal King | 72″ x 84″ | $3,899 |
| Split California King | 72″ x 84″ | $4,999 |
| FlexTop California King | 72″ x 84″ | $4,999 |
Trial, Shipping, and Warranty
Trial: 100-night trial is offered on mattresses. However, you are encouraged to sleep on the mattress for at least 30 nights before deciding.
Warranty: A 15-year warranty is offered to Sleep Number consumers for their mattresses.
Shipping: $249 for Premium delivery and setting up your mattress and base must be paid. The professionals will deliver the mattress and set it up in your house.
Our Verdict
Sleep Number M7 is a great mattress and one of the best investments. With Sleep Number technology and the ability to alter firmness, you can look forward to a fantastic sleep. The CoolFit temperature regulation is hands down one of the best features.
Sleep Number: What Buyers Should Know Before Purchasing
Shopping for a Sleep Number mattress means weighing several factors that reviews alone cannot capture. Here is a practical framework for evaluating this brand against your specific sleep needs.
Questions to Ask Before Buying
- What is the trial period? Check whether the retailer or brand offers a risk-free trial. Anything under 100 nights limits your ability to properly evaluate comfort through different seasons and sleep cycles.
- What does the warranty actually cover? Read the fine print on sagging thresholds, stain exclusions, and foundation requirements. A warranty that sounds generous on paper may be difficult to claim in practice.
- How is the mattress delivered? Bed-in-a-box delivery means self-setup and potential off-gassing. White-glove delivery includes professional setup and old mattress removal.
- What do long-term owners say? Filter reviews by 1-year and 2-year owners. Initial comfort impressions often differ from long-term satisfaction.
How Sleep Number Compares on Key Metrics
Every mattress purchase involves trade-offs. Sleep Number may excel in certain areas while falling short in others. The most important factors for long-term satisfaction are durability (will it maintain support beyond year 3?), temperature regulation (will you sleep hot?), and purchase protections (can you return it hassle-free if it does not work?).
Sleep Number M7 Mattress Review
The Sleep Number M7 is a mid-to-upper-tier model in the Sleep Number lineup, featuring DualAir adjustability, a thicker comfort layer than entry-level models, and a PlushFit foam system with multiple zones. A wireless remote or smartphone app lets each sleeper set their preferred firmness from 0 to 100. The M7 also includes a higher-quality knit cover that feels more premium than the covers on lower-tier Sleep Number beds.
Where the M7 shines is in adaptability. Whether you prefer a cloud-soft setting for side sleeping or a firm surface for back sleeping, the air chambers adjust in seconds. The zoned foam layer adds contouring that earlier Sleep Number models lacked, and the overall comfort experience is noticeably better than the brand's sub-$2,000 offerings. Couples consistently rate the dual-zone adjustability as the M7's best feature.
The downsides mirror those of the broader Sleep Number platform. Mechanical parts - air pumps, hoses, and chambers - introduce failure points that do not exist in traditional mattresses. Replacement pumps run $200-$400, and service calls add to the total cost of ownership. Edge support remains a weakness, and the mattress requires a Sleep Number compatible base. The trial period is 100 nights with a return fee, and warranty coverage becomes prorated after the second year.
Related Guides
Editor's pick , Memory Foam Series
Sleep Number m7
4-inch CoolFit memory foam + DualAir + ActiveTemp climate. The memory foam pick that doesn't sleep hot. Queen $2,899-$3,299.
Sleep Number m7 Memory Foam Series: deep review
The Sleep Number m7 brings memory foam contouring to the smart bed category. Most adjustable air beds , including the rest of Sleep Number's InnovationSeries and PerformanceSeries lineup , use PlushFit poly foam as the comfort layer. The m7 swaps that out for a 4-inch CoolFit memory foam top, giving owners the classic memory foam sink-in feel while keeping the DualAir per-side firmness adjustment.
m7 construction details
- Comfort layer: 4-inch CoolFit memory foam (gel-infused for heat dissipation). Provides deeper contouring than PlushFit.
- Air chamber: DualAir per-side, 0-100 firmness range, same as the rest of the Sleep Number lineup.
- Climate: ActiveTemp cooling system. Phase-change cover material pulls heat away from the body; addresses the heat-retention complaint that limits traditional memory foam.
- Smart tech: Full SleepIQ tracking, ResponsiveAir auto-adjustment, FlexFit base pairing. The m7 has the full Sleep Number ecosystem.
- Warranty: 25-year limited (chamber, pump, fabric defects).
m7 vs i7 feel comparison
The i7 InnovationSeries uses 5-inch PlushFit (poly foam) over DualAir. The m7 uses 4-inch CoolFit (memory foam) over DualAir. The functional difference: PlushFit is responsive and springy; CoolFit memory foam contours and hugs. Same firmness number on both beds will feel different , the m7 at 55 will feel softer than the i7 at 55 because the memory foam sinks in more before the air chamber response engages.
m7 for couples
The m7 keeps the per-side DualAir firmness advantage that defines Sleep Number for couples. Each partner picks their own number. Memory foam isolates motion well, so the m7 is one of the best Sleep Number models for partners with different sleep schedules , getting in and out of bed doesn't transmit motion across to the other side.
m7 for hot sleepers
Traditional memory foam runs hot because it traps body heat in the foam matrix. The m7's CoolFit gel infusion + ActiveTemp phase-change cover mitigates this meaningfully. Owner reports show m7 sleeps cooler than the industry average for memory foam, but warmer than the i7 with DualTemp active climate. If heat retention is the top concern, the i7 is the better pick. If memory foam feel is the top priority, the m7 is the right call.
Who should buy the m7
- Memory foam fans who want per-side firmness control via DualAir.
- Couples with different sleep schedules , motion isolation is excellent.
- Side sleepers who need deeper contouring than PlushFit provides.
- Owners who want the Sleep Number ecosystem (SleepIQ, FlexFit, ResponsiveAir) but prefer memory foam feel.