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Slumber Cloud Core Sheets Review: Are They Worth It?
Adjustable Bed Sheets

Slumber Cloud Core Sheets Review: Are They Worth It?

★★★★★ 4.6 / 5

Slumber Cloud Core Sheets use Outlast technology to absorb and release heat, aiming for a stable sleep temperature. They suit hot sleepers who prefer a crisp cotton feel. The standout trait is NASA-developed phase-change material woven into the fabric.

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Our verdict

Slumber Cloud Core Sheets deliver on their cooling promise with a smooth, crisp texture. They are a solid choice for hot sleepers, but the high price and limited color options may deter some. If budget is a concern, consider alternatives.

How it scores

Cooling Performance
4.5
Comfort
4.4
Durability
4.2
Value
3.8
Customer Satisfaction
4.3

The good and the annoying

  • Effective temperature regulation using Outlast technology
  • Crisp, breathable cotton feel
  • Fits deep mattresses up to 18 inches
  • Machine washable and wrinkle-resistant
  • Premium price point
  • Limited color selection
  • May not suit those who prefer ultra-soft, brushed cotton

Slumber Cloud Core Sheets use Outlast technology to absorb and release heat, aiming for a stable sleep temperature. They suit hot sleepers who prefer a crisp cotton feel. The standout trait is NASA-developed phase-change material woven into the fabric.

What Makes Slumber Cloud Core Sheets Unique?

The key is Outlast technology, originally developed for NASA. It uses phase-change materials that absorb excess heat and release it when you cool down. This helps maintain a comfortable microclimate around your body. The fabric is a 300-thread-count percale cotton, which feels crisp and breathable. Owners often note the sheets feel cool to the touch initially, and many report less night sweating.

How Do They Compare to Other Cooling Sheets?

Many cooling sheets rely on synthetic fibers or special weaves. Slumber Cloud uses a cotton blend with Outlast viscose, which is a natural cellulose fiber. This gives a more traditional cotton feel while adding temperature regulation. Compared to bamboo or eucalyptus sheets, these are less silky but more breathable. Some users find the percale texture slightly rough at first, but it softens with washing. They are generally more expensive than basic cotton sheets but competitive with other tech-driven options.

Specs that matter

Material100% cotton with Outlast viscose
Thread Count300
WeavePercale
Available SizesTwin, Twin XL, Full, Queen, King, Cal King
Fits Mattress DepthUp to 18 inches
CareMachine wash cold, tumble dry low
Buy it if

You are a hot sleeper who wants a crisp, breathable sheet with proven temperature regulation and don't mind paying a premium.

Skip it if

You prefer a soft, sateen-like feel or are on a tight budget, as these sheets are pricey and have a percale finish.

Questions before you buy

Do Slumber Cloud Core Sheets really keep you cool?

Yes, based on owner reviews and the Outlast technology. Many users report less night sweating and a more consistent sleep temperature. The phase-change material actively absorbs and releases heat.

What is the thread count of Slumber Cloud Core Sheets?

The thread count is 300, which is moderate. It provides a crisp, breathable feel rather than a high-thread-count sateen softness.

Are these sheets suitable for deep mattresses?

Yes, they fit mattresses up to 18 inches deep. The fitted sheet has deep pockets and an elastic band to keep it secure.

How do I care for Slumber Cloud Core Sheets?

Machine wash cold with like colors and tumble dry low. Avoid bleach and fabric softeners, as they can affect the performance of the Outlast technology.

What is the difference between Slumber Cloud Core and Stratus sheets?

The Core line is a percale weave with a crisp feel, while the Stratus line is a sateen weave that is softer and silkier. Both use Outlast technology, but the Stratus is often more expensive.

Can I use these sheets with a mattress pad?

Yes, you can use a mattress pad, but ensure it is not too thick to prevent the fitted sheet from fitting properly. The deep pockets should accommodate most pads.

Are Slumber Cloud Core Sheets worth the price?

If you struggle with night sweats and value temperature regulation, many owners say yes. They are durable and effective, but if you don't overheat, you might find cheaper options sufficient.

What sizes are available for Slumber Cloud Core Sheets?

They come in Twin, Twin XL, Full, Queen, King, and California King. This covers most standard bed sizes.

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