Best Adjustable Mattress (2026): Sleep Number ComfortMode Recognized for Personalized Firmness and Responsive Support by Consumer365

NEW YORK, Sept. 15, 2026 /PRNewswire/ -- Consumer365 has recognized Sleep Number's ComfortMode as the best adjustable mattress of 2026. The mattress allows sleepers to adjust how firm or soft it feels, personalize each side separately, and receive automatic support as they move during the night.

Best Adjustable Mattress

• Sleep Number - a sleep wellness company offering adjustable mattresses with personalized firmness, and support and temperature

The recognition follows an evaluation of adjustable mattresses currently sold to consumers, comparing construction, control systems, trial length, and warranty terms across the category.

Personalized Firmness Sets ComfortMode Apart

With ComfortMode, sleepers can use a remote to make the mattress firmer or softer at any time. On models designed for two sleepers, each person can adjust their side separately, allowing both partners to find what feels most comfortable to them.

This sets ComfortMode apart from other mattresses where firmness is chosen once, typically in a showroom, and stays constant for the life of the product.

Sleep preferences can change over time. Travel, an injury, a new sleeping position, or simply sharing the bed with someone who prefers a different feel can affect what is comfortable from one night to the next. ComfortMode addresses this by using air chambers that can be adjusted as needed. Adding air makes the mattress firmer, while releasing air makes it softer.

The remote handles these changes quickly, so there is no flipping the mattress, rearranging foam, or starting over with a new purchase. On dual-side models, each half of the bed adjusts independently, which is commonly used by couples with different firmness preferences.

Consumer365 highlighted this as one of ComfortMode's most practical features because sleepers can adjust the bed whenever their comfort needs change.

Responsive Air Adjusts to Movement Automatically

Most people change positions while they sleep. ComfortMode's Responsive Air feature is designed to sense these movements and adjust the mattress automatically, helping sleepers stay supported throughout the night.

Sleepers can still use the remote whenever they want to make their own firmness adjustments. Consumer365 noted that the automatic feature may be especially useful for restless sleepers and people who regularly move between their back, side, and stomach during the night.

Layered Construction Balances Cooling and Pressure Relief

ComfortMode uses a layered build that places 3.5 inches of foam above the adjustable air chambers, with cooling materials integrated into the upper layer rather than added as a separate component. The construction is intended to manage temperature and pressure relief at the same time, rather than treating them as separate design problems.

A plush knit cover forms the top layer, with enough stretch to move naturally with the comfort layers beneath. Below the cover sits 2.5 inches of foam containing built-in cooling materials, followed by a 1-inch supportive foam layer that runs the length of the mattress and cushions common pressure points at the hips and shoulders. A final 1-inch layer sits beneath the air chambers, adding stability to the base.

ComfortMode Lux, a related model in the same collection, measures 11 inches, adds hip relief, and includes 25 percent more built-in cooling material than the standard version, according to Sleep Number's product listing.

Trial Period and Warranty Support Long-Term Use

Sleep Number says its beds are designed to last 25 years. ComfortMode also comes with a 100-night trial, giving customers time to experience the mattress at home before deciding whether it is right for them.

The mattress includes a 10-year limited warranty. Coverage is provided in full during the first two years, followed by limited coverage for the remaining eight years.

ComfortMode should be placed on a firm, flat surface, such as a platform bed, Integrated Base, Adjustable Base, or bunkie board. A traditional box spring may not provide enough support for the mattress. Bases are sold separately, so the total cost will depend on whether the buyer already has a compatible foundation. The mattress's adjustment system also requires access to a power outlet.

HSA and FSA eligibility may apply for qualified buyers, and seasonal savings are sometimes available directly through Sleep Number. ComfortMode is available in Twin, Twin XL, Full, Queen, King, Split King, and California King sizes.

The full review of Sleep Number ComfortMode is available now at Consumer365.

About Sleep Number

Sleep Number^® is the leader in personalized sleep wellness. With adjustable firmness, pressure-relieving support and temperature balancing comfort built into every mattress, Sleep Number beds adapt to customers' changing needs, night after night, year after year. Backed by almost 40 years of innovation, 1,000+ patents and patents pending, and billions of hours of sleep data, Sleep Number has helped more than 16 million people achieve their best sleep.

Sleep Number mattresses, bases, bedding, and furniture are available at its stores nationwide and at SleepNumber.com.

About Consumer365.org: Consumer365 provides consumer news and industry insights. As an affiliate, Consumer365 may earn commissions from sales generated using links provided.

SOURCE Consumer365.org