CoolNest 14 Inch King Size Mattress, Cooling King Memory Foam Mattress for Cool Night Sleep

Ever wake up in the middle of the night, drenched in sweat, wishing for a cooler sleeping surface? You’re not alone. Many people struggle with overheating during sleep, and it can really disrupt your rest. The CoolNest 14 Inch King Size Mattress tackles this issue head-on with its innovative cooling memory foam. This mattress is designed to help you maintain a comfortable temperature all night long, so you wake up refreshed and ready for the day. Expect to invest in a comfortable sleep experience that balances support and breathability.

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At a Glance

Best For: Hot sleepers looking for cooling comfort and support.

Key Strengths:

  • Cooling Technology Keeps you comfortable and sweat-free all night.
  • Memory Foam Layers Offers excellent support and contouring for your body.
  • King Size Design Provides ample space for couples or those who love to sprawl.

Watch Out For: Some may find it too soft if they prefer a firmer feel.

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Who This Is For

If you’re a hot sleeper who finds yourself tossing and turning due to overheating, this mattress is designed specifically for you. With its cooling technology and breathable materials, you can experience a refreshing night’s sleep without waking up in a sweat.

Couples sharing a king size bed will also benefit from this mattress. The memory foam layers provide excellent motion isolation, so when your partner shifts during the night, you won’t feel a thing. This means uninterrupted sleep for both of you, which is a game changer for shared spaces.

Finally, if you’re someone who struggles with pressure points due to a firmer mattress, the CoolNest mattress contours to your body, alleviating pressure on your shoulders and hips. This is especially helpful if you’re a side sleeper who needs that extra cushioning.

Key Features

Cooling Technology

The CoolNest mattress features advanced cooling gel-infused memory foam that helps regulate body temperature. This means you won’t wake up feeling hot and uncomfortable. The cooling technology is a game changer for those who naturally run warm during sleep.

High Density Support Foam

Underneath the top layer of memory foam lies high density support foam that provides a solid foundation. This ensures that you get the support you need for your back and spine alignment without sacrificing comfort. It’s designed to hold up well over time, so you won’t have to worry about sagging.

King Size Dimensions

At **14 inches thick**, this king size mattress gives you plenty of space to stretch out. It measures **76 inches by 80 inches**, making it perfect for couples or anyone who enjoys having room to spread out while sleeping.

CertiPUR-US Certified

This mattress is CertiPUR-US certified, meaning it’s made without harmful chemicals and has low VOC emissions. You can rest easy knowing your sleeping environment is safe and healthy, free from off-gassing.

Motion Isolation

The memory foam absorbs movement, which is a huge plus for couples. When one person shifts or gets up, the other won’t feel a thing. This feature significantly enhances your sleep quality and comfort throughout the night.

What It's Like to Use

As you unbox the CoolNest mattress, you’ll notice it comes compressed and rolled up, making it easy to move into your bedroom. Once you lay it out on your bed frame, it expands to its full thickness within a few hours. The first night you sleep on it, you’ll likely feel the immediate comfort of the cooling foam as it cradles your body.

When you lay down, you sink in just enough to relieve pressure without feeling stuck. You can roll over easily, and if you share the bed, you won’t disturb your partner when you do. If you’re a side sleeper, you’ll appreciate how the mattress hugs your curves, providing support where you need it most.

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What Stands Out

What to Consider

Common Questions

How long does it take to expand after unboxing?

The mattress typically expands to its full size within a few hours, but it’s best to leave it for 24 hours to fully air out and reach optimal comfort.

Is this mattress compatible with all bed frames?

Yes, the CoolNest mattress can work with most bed frames, including platform beds, box springs, and adjustable bases. Just ensure that the frame supports the mattress properly.

How does it perform for back sleepers?

Back sleepers will find this mattress supportive enough to maintain proper spine alignment while also providing enough cushioning to relieve pressure points. It strikes a good balance for this sleeping position.

What’s the warranty on this mattress?

The CoolNest mattress comes with a 10-year warranty, covering any defects in materials or workmanship. This gives you peace of mind in your investment.

Other Options Worth Considering

If you’re looking for a firmer mattress or one that offers different cooling features, check out the other options in our mattress roundup. We cover various styles and price points to fit different needs and preferences.


Bottom Line

If you struggle to stay cool at night and want a mattress that provides both comfort and support, this is a solid choice. The cooling technology combined with memory foam support makes a real difference in your sleep quality. Expect a restful night that leaves you feeling rejuvenated.

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