Yawnder Reviews · Updated August 2026
Sleep Number ComfortNext Ultra Review (2026)
Verdict: 4.4/5 — ComfortNext Ultra is a specialist purchase rather than a default one.
Short answer: ComfortNext Ultra is the top of the ComfortNext collection: $4,499 for a Queen, 14 inches, the same Tri-Brid micro-coil-foam-air build as the Lux with Sleep Number’s maximum relief specification. It is the plushest bed in the lineup that is not part of the Climate collection — and if temperature is not your problem, it is the most mattress Sleep Number will sell you.
Who the Sleep Number ComfortNext Ultra is for
ComfortNext Ultra is the top of the ComfortNext collection: $4,499 for a Queen, 14 inches, the same Tri-Brid micro-coil-foam-air build as the Lux with Sleep Number’s maximum relief specification. It is the plushest bed in the lineup that is not part of the Climate collection — and if temperature is not your problem, it is the most mattress Sleep Number will sell you.
- Great fit: Heavier sleepers, couples with very different body weights, and anyone who wants the plushest non-Climate Sleep Number.
- Build: 14″ tall, ComfortNext collection.
- Smart features: Full Sleep Number app: ResponsiveAir, nightly sleep score and insights.
- Terms: 100-night trial (a return shipping/restocking fee applies), a 10-year limited warranty that is fully covered for the first two years and prorated after that, and HSA/FSA eligibility on the mattress.
Check today’s ComfortNext Ultra price
Yawnder earns a commission if you buy through our links. It does not change the price you pay or what we write. Sleep Number is not stocked in our San Diego showroom — this review is based on published construction and pricing, Sleep Number’s own owner documentation and our category testing of adjustable-air beds.
How a Sleep Number actually works
Every Sleep Number bed is an air bed at heart: an air chamber under each side of the mattress, inflated or deflated to a firmness number from 0 to 100, with foam and (on the newer models) micro-coils layered on top. Couples get two independent numbers on any size Queen and up.
What separates the 2026 models is what sits above the air: foam only on the ComfortMode beds, thicker targeted foam on ComfortNext, micro-coils in the Tri-Brid Lux and Ultra, and active temperature hardware in the Climate collection. Everything else — the pump, the numbers, the trial — is shared.
Sleep Number ComfortNext Ultra specifications
| Collection | ComfortNext (mid tier, flagship) |
|---|---|
| Profile | 14 inches |
| Construction | Tri-Brid — responsive micro-coils, foam and dual air chambers, maximum relief spec |
| Relief targets | Hips, shoulders, knees and lower back |
| Smart features | Sleep Number app, ResponsiveAir, nightly sleep score |
| Firmness | Adjustable 0–100 per side, plus automatic adjustment |
| Queen list price | $4,499 |
| Terms | 100-night trial (a return shipping/restocking fee applies), a 10-year limited warranty that is fully covered for the first two years and prorated after that, and HSA/FSA eligibility on the mattress. |
How it performs, category by category
Pressure relief
Sleep Number’s maximum-relief build, and the extra inch over the Lux is real cushioning rather than a thicker base. Heavier sleepers get the biggest benefit — there is enough material above the air chamber that you never feel it.
Support for heavier bodies
The best case for the Ultra. Above roughly 250 lb, thinner air beds let the hip drop and force you to over-inflate; 14 inches of Tri-Brid lets you sleep at a comfortable number instead of a firm one.
Cooling
Same principle as the Lux — coil airflow plus cooling materials, no active cooling. A taller bed does trap slightly more body heat around you, so hot sleepers should still look at ClimateCool.
Motion isolation
Very good. More material between the two sleepers means less cross-bed transfer than the thinner ComfortNext models.
Edge support
Strongest of the ComfortNext collection thanks to the deeper coil-reinforced perimeter.
Practicalities
Fourteen inches plus a base is a tall bed. Measure your entry height, and buy sheets rated for 16-inch depth or the corners will pop.
How the ComfortNext Ultra scores
Scored out of 10 against beds in the same price band, not against the whole market.
Editorial assessment by Yawnder Reviews based on published construction specs, Sleep Number owner documentation and category testing of adjustable-air beds.
Pros and cons
What we like
- Maximum pressure relief in the lineup outside the Climate collection.
- The best Sleep Number for heavier sleepers and mismatched-weight couples.
- Tri-Brid micro-coils plus lower-back support.
- Only $500 above the Lux for a materially deeper comfort system.
What we would change
- $4,499 for a Queen, and still no active cooling.
- Fourteen inches is a tall, heavy bed that needs deep-pocket bedding.
- For average-weight sleepers the Lux gets you most of the way for less.
- Still an air bed — pump, hoses and remote are wear items.
The 2026 Sleep Number lineup compared
Sleep Number cut its range from twelve mattresses to seven in March 2026 and reorganised them into three collections: ComfortMode (remote only), ComfortNext (app, ResponsiveAir and the Tri-Brid micro-coil builds) and Climate (active temperature control). Here is where the ComfortNext Ultra sits.
| Model | Collection | Height | Smart features | Queen list |
|---|---|---|---|---|
| ComfortMode | ComfortMode | 10″ | Remote only | $1,599 |
| ComfortMode Lux | ComfortMode | 11″ | Remote only | $2,099 |
| ComfortNext | ComfortNext | 12″ | App + ResponsiveAir | $2,999 |
| ComfortNext Lux | ComfortNext | 13″ | App + ResponsiveAir | $3,999 |
| ComfortNext Ultra (this review) | ComfortNext | 14″ | App + ResponsiveAir | $4,499 |
| ClimateCool | Climate | 12″ | App + ResponsiveAir | $5,499 |
| Climate360 | Climate | 13″ | App + cooling & warming | $10,249 |
Queen list prices as published by Sleep Number in August 2026. Sleep Number discounts almost continuously — the price you pay is usually 10–25% below list. Always check the live price.
Where this model fits
- Versus ComfortNext Lux: pay the $500 if either sleeper is over about 250 lb or you specifically want a plusher surface. Otherwise the Lux is the better value.
- Versus ClimateCool: $1,000 more for active cooling and a 12-inch build. Choose on temperature, not on plushness — the Ultra is the softer bed.
- Versus a $4,500 luxury hybrid: a Saatva or Tempur-Pedic at this price gives you better materials; the Sleep Number gives you two firmness settings and nightly data. Pick the trade that matters in your household.
Also read our full Sleep Number model comparison, is a Sleep Number worth it? and the Sleep Number cost guide.
Frequently asked questions
How much is the ComfortNext Ultra?
$4,499 list for a Queen. It is the most expensive bed in the ComfortNext collection and sits $1,000 below ClimateCool.
How tall is the ComfortNext Ultra?
14 inches — the tallest mattress in the 2026 Sleep Number lineup.
Is the Ultra worth it over the Lux?
For sleepers over roughly 250 lb, or couples with a large weight difference, yes. For average-weight sleepers the 13-inch Lux delivers most of the same feel for $500 less.
Does the Ultra cool actively?
No. It uses cooling materials and micro-coil airflow. Active cooling is exclusive to ClimateCool and Climate360.
Can it go on an adjustable base?
Yes. Sleep Number sells it with their own bases, and the Tri-Brid build flexes without damage.
The verdict
4.4/5. ComfortNext Ultra is a specialist purchase rather than a default one. If you are heavier, share the bed with someone much lighter, or simply want the deepest cushioning Sleep Number offers without paying Climate money, it is the right call. Everyone else should save $500 and buy the Lux.
Shop the ComfortNext Ultra at Sleep Number
Reviewed by Ben Trapskin · Yawnder Reviews · Updated August 2026