Yawnder Reviews · Updated August 2026
Sleep Number ClimateCool Review (2026)
Verdict: 4.5/5 — ClimateCool is a single-purpose bed and it does that purpose extremely well.
Short answer: ClimateCool is the cheaper of Sleep Number’s two active-cooling beds: $5,499 list for a Queen with the integrated base, 12 inches, hybrid construction, and the ability to run each side up to 15 degrees cooler. Unlike every model below it, this bed does not just avoid trapping heat — it actively pulls it away, per side, on a schedule you set in the app.
Who the Sleep Number ClimateCool is for
ClimateCool is the cheaper of Sleep Number’s two active-cooling beds: $5,499 list for a Queen with the integrated base, 12 inches, hybrid construction, and the ability to run each side up to 15 degrees cooler. Unlike every model below it, this bed does not just avoid trapping heat — it actively pulls it away, per side, on a schedule you set in the app.
- Great fit: Hot sleepers, menopausal night sweats, and couples where one person runs hot and the other does not.
- Build: 12″ tall, Climate collection.
- Smart features: Full Sleep Number app: active per-side cooling control, ResponsiveAir, nightly sleep score.
- 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 ClimateCool 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 ClimateCool specifications
| Collection | Climate |
|---|---|
| Profile | 12 inches |
| Construction | Hybrid with contouring support, built-in cooling materials plus active cooling |
| Cooling | Adjust up to 15° cooler on each side |
| Base | Ships with Sleep Number’s integrated upholstered base (firm, level, non-adjustable) |
| Smart features | App control of cooling and firmness, ResponsiveAir, nightly sleep score |
| Queen list price | $5,499 (regularly discounted 10–20%) |
| 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
Active cooling
This is the product. Cooling is per side, so one partner can run cold while the other does not, and it holds through the night rather than fading like a phase-change cover. For genuine night sweats it is one of the few mattress-level answers that works.
Cooling versus a cooling topper
A ClimateCool costs several times what an add-on cooling pad does, and a pad can be moved to your next mattress. The advantage here is that there is no extra layer, no hose to a bedside unit and no subscription.
Pressure relief
Good contouring across the whole body, but it is a 12-inch build — the 13- and 14-inch ComfortNext models are the plusher beds. You are buying temperature, not cushioning.
Firmness and automation
Same 0–100 per side with ResponsiveAir. The app becomes genuinely useful here because temperature and firmness schedules live in the same place.
Base
The integrated base is a flat, firm platform, not an adjustable one. If you want head and foot articulation you are looking at Climate360, which includes the smart adjustable base.
Running cost
Active cooling means a powered unit running most of the night. It is modest, but it is not zero, and it is a fan-driven system with moving parts.
How the ClimateCool 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
- Genuine per-side active cooling, up to 15 degrees.
- No subscription and no bedside water unit, unlike some competitors.
- Full app control of temperature, firmness and sleep tracking in one place.
- Integrated base included in the list price.
What we would change
- $5,499 list for a Queen.
- Only 12 inches — ComfortNext Lux and Ultra are plusher beds for less money.
- The included base is fixed, not adjustable.
- Powered cooling adds mechanical parts to a bed that already has a pump.
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 ClimateCool 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 | ComfortNext | 14″ | App + ResponsiveAir | $4,499 |
| ClimateCool (this review) | 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 Ultra: $1,000 more for cooling, $1,000 less mattress. Buy on temperature.
- Versus Climate360: Climate360 widens the range to warming as well as cooling and includes the smart adjustable base, at roughly $10,249 list.
- Versus a cooling mattress pad: a good pad on a great hybrid costs far less and moves with you. ClimateCool wins on integration and on not having a hose across the floor.
Also read our full Sleep Number model comparison, is a Sleep Number worth it? and the Sleep Number cost guide.
Frequently asked questions
How cold does ClimateCool get?
Sleep Number rates it at up to 15 degrees cooler per side. It is a relative adjustment against your room and body temperature, not a fixed thermostat setting.
Does ClimateCool warm as well as cool?
No. Cooling only. Climate360 is the model that both cools and warms, across a wider range.
How much is ClimateCool?
$5,499 list for a Queen with the integrated base. Sleep Number regularly runs the Climate collection at 10–20% off, and the effective price moves with the promotion.
Does it need a subscription?
No. The app and cooling features are included — there is no monthly fee for the temperature control.
Is it better than a cooling topper?
For dedicated hot sleepers, it is more consistent and better integrated. For everyone else, a cooling pad on a good hybrid is far better value.
The verdict
4.5/5. ClimateCool is a single-purpose bed and it does that purpose extremely well. If heat is the reason you are shopping — night sweats, a hot bedroom, a partner who runs cold while you cook — nothing else in the Sleep Number range solves it. If you are shopping on comfort, the ComfortNext Lux costs $1,500 less and sleeps plusher.
Shop the ClimateCool at Sleep Number
Reviewed by Ben Trapskin · Yawnder Reviews · Updated August 2026
Lab data
Every mattress we review is measured on the same rubric, in the same order, with the same units, so numbers are comparable across brands. Measured 2026-08-28.
| Measurement | Result | How to read it |
|---|---|---|
| Firmness | Not measured | 1–10 scale (6.5 = medium-firm) |
| Construction | Airbed | Foam / hybrid / latex / airbed |
| Profile height | 12" | inches |
| Motion transfer | 8.2 | score /10 — higher is less disturbance |
| Edge support | 7.2 | score /10 — sitting and sleeping edge |
| Temperature | 9.4 | score /10 — higher sleeps cooler |
| Pressure relief | 8.2 | score /10 — shoulder and hip |
| Spine alignment | Not measured | score /10 — neutral posture |
| Ease of movement | Not measured | score /10 — repositioning speed |
| Expected durability | 7.8 | score /10 — projected 5-year hold |
| Off-gassing | Not measured | score /10 — higher is less smell |
| Queen price | $5,499 | MSRP before seasonal discounts |
| Sleep trial | 100 nights | nights |
| Warranty | 10 years | years |
How this score is built
Support and spine alignment 25% · pressure relief 20% · temperature 15% · motion transfer 15% · edge support 10% · durability 10% · value 5%. Scores come from side-by-side testing on the same instruments; nothing is scored from a spec sheet alone. Read the full rubric.