Slumber Cloud Nacreous cooling mattress pad
-20% off
COOLING TECH·SLUMBER CLOUD

Slumber Cloud Nacreous Cooling Mattress Pad (Queen)

4.3 · 1,800 reviews
Editor score8.3/10

Best for: Hot sleepers without electronics, side sleepers, budget cooling

Best price today$50.00 vs MSRP
$199.00$249.00
At Amazon · 90-day low $199.00 · avg $220.24
Buy at Amazon · $199.00
Updated 2026-07-01Tested 30 days
Type
Passive phase-change material
Cooling
NASA Outlast tech
Electronics
None

Price across 1 retailer

Live as of 2026-07-01
amazon
AmazonBest price
Search-fallback · NASA Outlast material · passive cooling
$199.00
2026-07-01
See at Amazon

90-day price history

$199.00$249.00

Current price is 10% below the 90-day average. Reasonable buy today.

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At a glance

TypePassive phase-change material
CoolingNASA Outlast tech
ElectronicsNone
Machine washableYes (cool water)
SizesTwin to Cal King
Warranty5 years
Best forHot sleepers without cords
Depth3" (fits fitted sheet)
CareMachine wash
CertificationsOEKO-TEX
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Frequently asked questions

Slumber Cloud vs Chilipad Dock Pro?

Slumber Cloud is passive (no pump, no cords). Chilipad is active water circulation. Slumber Cloud is $200 vs $999. Different price tiers, different features.

Does Outlast really work?

Yes — NASA-derived technology has real thermal absorption. Not as cold as active cooling but genuine improvement over standard cotton pads.

How does it wash?

Cold water, gentle cycle, tumble dry low. Preserves the phase-change material. Skip fabric softener.

Slumber Cloud vs bamboo cooling pad?

Slumber Cloud has real active cooling tech. Bamboo pads just breathe better. For active cooling without electronics, Slumber Cloud wins.

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