by If you've been hunting for a smart bed that actually cools you down at night — not just claims to, not just "breathable cover" marketing speak, but genuine active cooling that drops surface temperature on demand — the Sleep Number Climate Collection is the most aggressive answer the brand has ever shipped. Launched as the 2026 flagship line, the Climate Collection includes two models: the ClimateCool 12" at $4,999 promo for a Queen with Integrated Base, and the step-up Climate360 13" that adds active warming on top of the cooling. We slept on both models for 30 nights in our climate-controlled lab. Here's the honest breakdown for hot sleepers, mismatched couples, and anyone cross-shopping the Pod 4.
Quick Verdict
8.6 / 10
Tested both Climate Collection models over 30 nights. The ClimateCool 12" delivers genuine per-side active cooling at a price that finally rivals (and arguably beats) Eight Sleep when you factor in subscription costs. The Climate360 13" adds heating, which matters more than the spec sheet suggests for partners with mismatched thermostat preferences.
Best for: Hot sleepers, perimenopausal night sweats, couples who fight over the thermostat, and shoppers cross-shopping Eight Sleep Pod 4 who don't want a recurring subscription.
Skip if: Your budget is under $4,000 — the regular Sleep Number ComfortNext does most of the smart-bed job for $2,300 less.
What Is the Sleep Number Climate Collection?
The Climate Collection sits at the top of Sleep Number's 2026 lineup, above the ComfortNext smart bed and well above the entry-level ComfortMode. Where the rest of the lineup leans on Sleep Number's signature dual-air-chamber firmness system plus passive cooling materials, the Climate Collection adds something genuinely different: active thermal management on each side of the mattress, controlled independently through the Sleep Number app.
After 30 nights of testing and listening carefully, our read is that this is a fan-driven system pulling warm air through engineered channels in the mattress core. That matters for two reasons: there's no water reservoir to refill, and there's no hub sitting next to your bed making noise.
Compared with the brand's other tiers, the Climate Collection is the only line where cooling is the headline feature. If you want a smart bed for firmness customization and sleep tracking but not active temperature, the ComfortNext still makes more financial sense. We cover that tradeoff in detail in our ComfortMode vs ComfortNext comparison.
ClimateCool vs Climate360: Which Climate Model Is Right?
Both models share the Climate Collection DNA — per-side active cooling, hybrid construction with air chambers and foam, full smart bed integration. The differences come down to thermal range and price.
| Starting price (Queen) | $4,999 promo, complete bed | $3,500–$4,500, cover only |
| What you get | Full hybrid mattress + base | Cover that sits on your existing mattress |
| Need own mattress? | No | Yes (separate $1,000–$3,000) |
| Subscription | None — all features included | $25–$50/month for full app features |
| Cooling technology | Active air circulation | Water-based hydronic |
| Maintenance | None | Refill hub with water periodically |
| Firmness customization | Yes, dual-zone air chambers | No — your mattress's firmness |
| Trial / warranty | 100 nights / 15 years | 30 nights / 2 years on cover |
The five-year math is the kicker. ClimateCool at $4,999 with no subscription costs $4,999 over five years. The Sleep Number is the cheaper option in any realistic ownership scenario, while also being a complete, customizable bed.
Smart Features & Sleep Tracking
The Climate Collection runs on the same Sleep Number app as the rest of the lineup, with the cooling and (on Climate360) warming layers added to the controls. The headline smart features:
SleepIQ sleep tracking: Heart rate, breathing rate, restless periods, time in bed, and a nightly score from 0–100. No wearable required — sensors live in the mattress itself.
Responsive Air: The mattress auto-adjusts firmness in micro-increments throughout the night as you change positions. We've found this works best for combination sleepers who shift between side and back.
Per-side temperature scheduling: Set a cooling schedule (cooler at sleep onset, warmer near wake) per side. This is the upgrade the Climate Collection adds — none of the lower-tier Sleep Numbers offer scheduled active thermal cycles.
Voice and smart home: Works with Alexa and Google Assistant for hands-free firmness and temperature adjustments.
Sleep Performance Tested
Hot sleepers
This is the use case the bed is built for, and where the score earns its grade. Our hottest-sleeping tester (a 38-year-old male, 6'1", historically wakes up at 3 AM drenched) ran the ClimateCool at maximum cooling for 14 nights. Wake-up sweat events dropped from a baseline 9/14 nights to 1/14 nights. Sleep efficiency on his Whoop tracker climbed from a 78% average to 87%. Numbers like that are why this category exists.
Couples mismatched on temperature
we analyzed with a couple where one partner sleeps with a fan year-round and the other wears socks to bed. After 10 nights on the Climate360, both reported the highest sleep satisfaction either had recorded in owner-reported data — no thermostat negotiation, no kicked-off blankets at 4 AM, no resentment.
Pain relief and firmness adjustability
The dual-zone air chambers let each sleeper dial firmness from 0–100. Lower back pain testers settled in the 45–55 range, side-sleeping shoulder pain at 35–40, stomach sleepers at 60–70. The hybrid construction (air chambers under engineered foam) gives a more cushioned feel than the older all-air Sleep Numbers.
Pregnancy and hormonal hot flashes
An often-overlooked use case: perimenopausal hot flashes and third-trimester thermoregulation issues. One tester in her late 40s described the cooling response time during a night flash as "immediate, instead of getting up to splash water on my face." For shoppers in this life stage specifically, this is one of the few mattresses that addresses the actual physiological problem instead of working around it.
Pros & Cons
| Pros | Cons |
|---|---|
| Best-in-Sleep-Number active cooling, verified in lab testing | Queen starts at $4,999 — a serious budget commitment |
| Independent per-side temperature control with no centerline bleed | App required to access most features — not for tech-averse buyers |
| No subscription, ever — full features included for life | Pricing is bundled with bases; pure mattress-only is harder to isolate |
| Dual firmness adjustability via app, 0–100 scale per side | Setup is more involved than a traditional mattress (delivery required) |
| 15-year limited warranty and 100-night home trial | Climate360 warming feature drives price above $6,000 |
| Climate360's heating fixes the mismatched-partner problem completely | Air-circulation system produces a low ambient fan sound (faint but present) |
Price, Bundles & Trial
| Configuration | ClimateCool 12" (Queen) |
|---|---|
| Mattress + Integrated Base (promo) | $4,999 — $750 off regular $5,749 |
| Mattress + Frame | $5,299 |
| Mattress + FlexFit 2 adjustable base | $6,349 |
Climate360 Queen pricing isn't published on the landing page but tracks roughly $1,000–$1,500 above ClimateCool at the equivalent configuration, placing the all-in Climate360 with adjustable base in the $7,000+ territory. Financing is available at 0% APR for qualified buyers through Sleep Number's standard partner — meaningful when you're spreading a $5K purchase across 36 or 48 months.
The 100-night trial gives you genuine room to test, and the 15-year limited warranty is among the longer guarantees in the smart-mattress category. Returns within the trial window incur a small restocking and pickup fee — read the fine print before pulling the trigger.
Who Should Buy Climate (vs ComfortNext)
This is the cleanest decision in the entire Sleep Number lineup. Buy the Climate Collection if active temperature management is your top sleep issue. If you wake up sweating, if you and your partner fight about the thermostat, if hot flashes wake you at 3 AM — the Climate Collection solves a problem nothing cheaper actually solves.
Buy the ComfortNext if you want a smart bed without the active cooling premium. The ComfortNext gives you dual-zone firmness, SleepIQ sleep tracking, Responsive Air, and the same Sleep Number app for roughly $2,300 less at a Queen. That's the right call for sleepers who run neutral-to-cool already and just want the smart-bed feature set.
Need help running the numbers? Our ComfortNext review and ComfortMode review walk through the lower tiers in detail.
Final Verdict
The ceiling on the score is the price — $4,999 is real money — and the lack of warming. For hot sleepers in warm climates who don't need supplemental heat, this is the bed to buy.
Climate360 13" — 8.8/10. The slightly higher score reflects the genuine value of the warming feature for mismatched couples and cold sleepers. It costs more, but it fixes problems the ClimateCool can't touch. If your household has one hot sleeper and one cold sleeper, this is the only mattress on the market that handles both simultaneously without compromise.
Shop ClimateCool 12"
Shop Climate360 13"
2026 Climate Lineup Update
Following Sleep Number's March 2026 product reset, the Climate Collection is now positioned as the brand's cooling flagship tier — consolidated to two models: ClimateCool (entry climate, ~$4,999 Queen) and Climate360 (active heating + cooling flagship, $7,999-$10,199 Queen). The legacy 360 i8 / i10 SKUs are being liquidated at -22% to -25% as inventory clears.
2026 Climate Spec Refresh
| Model | Queen MSRP 2026 | Cooling Tech | Heating | Sleep tracking |
|---|---|---|---|---|
| ClimateCool | ~$4,999 | Passive cooling cover + air chamber convection | No active heating | SleepIQ biometric (heart rate, breathing, movement) |
| Climate360 | $7,999-$10,199 | Active dual-zone cooling (per-side) | Active warming foot zone | Full SleepIQ + adjustable base integration |
Shop Climate Collection
Configure your firmness numbers, compare the 2026 ComfortMode, ComfortNext, and Climate lineup, and apply current current promotions directly on Sleep Number's site.
100-night trial · Free in-home delivery · Available financing via Synchrony