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Images: Sleep Number. Shown size and configuration may vary.

Sleep Number

ClimateCool

Name: Sleep Number ClimateCool
Brand: Sleep Number

Best for: Active cooling on each side

A 12″ smart air bed with active cooling for each side, per-side firmness and Responsive Air.

Good to know: Queen and larger only, and it cools but doesn’t warm; the Climate360 does both.

Type: Adjustable air (hybrid: foam + air chambers) with active cooling, smart/app-controlled
Height: 12″
Sizes: 3 ready-made

Pick it if

You sleep on your side
You sleep hot
You share the bed

Skip it if

You’re a heavier person
You need firm edges

From independent reviewers’ findings, credited below.

Your size

60 × 80 in · 12″ tall

Where to get it

sleepnumber.comQueen $5,749 · checked Oct 15 See price
Split kingSplit King, Split California King See the list

Returns: 100-night trial Details

We may earn a commission if you buy. Check the price for your exact size and height on the seller’s site.

The short version

Worth a look if

Active cooling on each side

Good

A 12″ smart air bed with active cooling for each side, per-side firmness and Responsive Air.
3 firmness choices: Adjustable firmness per side via app, Responsive Air, Active cooling up to 15 degrees cooler per side (brand claim)
Trial: 100-night trial
Height: 12″

Think about

Queen and larger only, and it cools but doesn’t warm; the Climate360 does both.
No owner reviews we could verify yet

Based on the maker’s published specs and terms, and the owner reviews linked below. We haven’t slept on it. Something wrong? Tell us.

What owners say

No owner reviews we can verify yet A small set of real reviews, each linked to its source. Not a star rating.

No owner feedback we can use yet.

What people liked

No supported praise summary in the sample.

What to weigh up

No substantive concern verified in this small sample. This is a gap in the evidence, not proof of no drawbacks.

What independent reviewers found

Sleep Foundation (Oct 2026): Each side cools within a 15-degree range; temperature control scored 9/10. Pressure relief above average, with side sleepers liking the cushioning. Motion isolation is a strength. Weak edges, no perimeter reinforcement. Back and stomach sleepers over 230 lb may sink too far. Review covers ClimateCool and Climate360 together. Site discloses it may earn a commission. Read it ↗

Their testing, in our words. We haven’t tested these mattresses ourselves, and we don’t repeat their scores.

Sources & sample limits

No usable owner sources. Sample: 0 owner reports.

Owner comments gathered from Reddit via RedditRecs were removed: RedditRecs and Reddit ask automated tools not to collect their content.

Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.

Every size it comes in

Queen60 × 80 in12″King76 × 80 in12″California king72 × 84 in12″

Taken from the maker’s size options, in the inches it publishes. Tap a size to compare every mattress made in it.

How it compares

Beside the most similar mattresses from other brands.

	ClimateCoolSleep Number	M3 Night Ice Performance MattressBedgear	M5 Performance MattressBedgear	M5 Night Ice Performance MattressBedgear
Type	Adjustable air (hybrid: foam + air chambers) with active cooling, smart/app-controlled	Hybrid	Hybrid	Hybrid
Queen price	$5,749	$3,500	$4,000	$4,500
Height	12″	12″	14″	14″
Trial	100 nights	See terms	See terms	See terms
Odd sizes	None	None	None	None
Expert reviews	1	1	1	1

What’s inside

1Plush high-density foam comfort layers (thickness not published)
2Active cooling system
3Adjustable air chambers

Feel: Adjustable firmness per side via app, Responsive Air, Active cooling up to 15 degrees cooler per side (brand claim)
Height: 12″
Custom sizes: Not offered for this model

Returns and ordering

Trial and returns

100-night trial

Before you order

Measure inside the frame, not the old mattress
Check clearance above for the height you pick
Make sure your base supports it
Buy sheets in the same exact size

Questions

What is it made of?

Hybrid design with plush high-density foam over adjustable air chambers and active temperature control (cooling only). The compare page lists built-in cooling materials plus active cooling. Sleep Number claims contouring support for the whole body. No published layer stack.

How firm is it?

Adjustable firmness per side via app, Responsive Air, Active cooling up to 15 degrees cooler per side (brand claim) That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

3 sizes, 12″. See every size. Confirm your exact size and height with the seller.

Are the reviews about this exact mattress?

No owner reviews we can verify yet. Owner comments gathered from Reddit via RedditRecs were removed: RedditRecs and Reddit ask automated tools not to collect their content.

Where did this information come from?

Checked 2026-10-15. Specs and terms can change.