Best King Size Mattress for Side Sleepers: Top Comfort and Support Choices

Last Updated on December 13, 2025 by Cassie Moorhead

There’s nothing worse than waking up with a sore neck or stiff shoulders. You toss and turn all night, trying to find a comfy spot.

Side sleepers know this struggle well. Finding the right mattress can feel like a never-ending challenge. But it doesn’t have to be that way. Choosing the right king size mattress designed for side sleepers can change your nights—and your days.

It helps ease pressure points, supports your spine, and keeps you cool all night long. Imagine waking up refreshed, pain-free, and ready to take on the day. In this article, we’ll explore some of the best king size mattresses for side sleepers in 2025. These picks offer comfort, support, and quality sleep. Keep reading to find the perfect mattress that will make restless nights a thing of the past.

12 Inch King Size Mattress

The 12 Inch King Size Mattress – 2025 Upgraded Hybrid Cooling Gel Memory Foam & Pocket Coils is ideal for individuals seeking a comfortable and supportive sleep solution, especially those who suffer from back and neck pain. This mattress is perfect for people who want a medium firm feel that balances pressure relief with proper spinal alignment. Additionally, it suits couples or light sleepers who value motion isolation and enhanced edge support in a breathable, cooling mattress.

Pros:

• Hybrid design combining cooling gel memory foam and pocket coils for optimal comfort and support
• Effective back and neck pain relief with medium firm support
• Excellent motion isolation reduces disturbances between sleeping partners
• Strong edge support maximizes usable sleeping surface
• Breathable materials enhance airflow to keep you cool all night
• Convenient mattress in a box packaging for easy delivery and setup

Cons:

• Weighs 69 pounds, which may be heavy for some users to move or rotate
• Medium firm feel might be too firm for those who prefer a very soft mattress
• Limited color options, only available in White with Black

The 12 Inch King Size Mattress features an upgraded hybrid construction that combines the cooling benefits of gel-infused memory foam with the responsive support of pocket coils. This combination not only provides pressure relief where you need it most but also promotes proper spinal alignment, making it highly effective for relieving back and neck pain. The medium firm feel caters to a wide range of sleepers, providing balanced comfort without sinking too deeply or feeling too hard.

Another key feature is the mattress’s excellent motion isolation capability, which ensures that movements on one side of the bed don’t disturb the other side. This is especially beneficial for couples or light sleepers. Additionally, the strong edge support allows you to use the entire mattress surface comfortably, and the breathable materials enhance airflow to maintain a cool sleeping environment. Packaged conveniently in a box, this mattress is easy to transport and set up in your bedroom, making it a practical and comfortable choice for many customers.

To buy this product, click here.

Wfgey King Size Mattress

The WFGEY King Size Mattress is ideal for individuals or couples seeking a medium firm mattress that combines the supportive benefits of memory foam and individual pocket springs. This mattress is perfect for those who value motion isolation to minimize sleep disturbances, and desire a cool and breathable sleeping surface for enhanced comfort throughout the night.

Pros:

• 12-inch thickness offers balanced comfort and support
• Memory foam layer provides excellent pressure relief
• Individual pocket springs reduce motion transfer
• Breathable design promotes a cool sleep environment
• Medium firm feel suits a wide range of sleeping positions
• Convenient mattress-in-a-box delivery for easy setup

Cons:

• May require a few days to fully expand after unpacking
• Medium firm feel might not suit those who prefer very soft mattresses

The WFGEY King Size Mattress features a combination of memory foam and individual pocket springs which work together to provide both contouring comfort and responsive support. The memory foam layer adapts to the body’s shape, alleviating pressure points and promoting spinal alignment, which can reduce aches and improve sleep quality. Meanwhile, the pocket springs operate independently to absorb movement, making this mattress an excellent choice for couples who are easily disturbed by each other’s motion during the night.

Additionally, the mattress is designed with breathable materials that encourage airflow, helping to regulate temperature and keep sleepers cool throughout the night. Its 12-inch height provides a substantial yet manageable profile that fits well on most bed frames. The medium firm feel strikes a balance between softness and support, appealing to a broad audience including back, side, and combination sleepers looking for a versatile and comfortable sleep surface.

To buy this product, click here.

Novilla King Size Mattress

The Novilla King Size Mattress is ideal for individuals seeking a blend of comfort and support, especially those who value a cool sleeping experience and pressure relief. Perfect for couples or anyone who enjoys a medium plush feel mattress with motion isolation, this mattress suits users who want to enhance their sleep quality without compromising on comfort or durability.

Pros:

• 12-inch gel memory foam provides excellent pressure relief and comfort.
• Motion isolating technology minimizes disturbances from a partner’s movements.
• Medium plush feel balances softness and support for restful sleep.
• Cool night sleep thanks to advanced gel infusion that regulates temperature.
• Generous king size dimensions (76” x 80”) offer ample sleeping space.

Cons:

• Heavier weight (76 pounds) may require assistance during setup or moving.
• Grey color may not match all bedroom decors.
• Medium plush may not be firm enough for those who prefer very firm mattresses.

The Novilla King Size Mattress features a thoughtfully designed 12-inch gel memory foam construction that contours to the body, providing targeted pressure relief for shoulders, hips, and back. This design helps reduce tossing and turning, promoting uninterrupted sleep. The gel infusion keeps the mattress cool by dissipating heat, making it an excellent choice for hot sleepers or those living in warmer climates.

Additionally, the mattress incorporates motion isolating properties, which significantly reduce the transfer of movement between partners. This feature is especially beneficial for couples who have different sleep schedules or tend to move a lot during the night. The medium plush feel strikes a balance between softness and support, accommodating a wide range of sleeping positions and preferences while maintaining spinal alignment for overall health and comfort.

To buy this product, click here.

Bedstory King Mattress

The BedStory King Mattress 14 Inch Cooling Gel Hybrid Bed is ideal for side sleepers and couples seeking enhanced comfort and support. This mattress is perfect for those who prioritize extra lumbar and shoulder support to alleviate pressure points, ensuring a restful night’s sleep. If you want a mattress that combines advanced cooling technology with superior spine alignment, this bed is designed for you.

Pros:

• Features over 960 pocket springs for individualized support and motion isolation
• Incorporates cooling gel to regulate temperature and keep you comfortable throughout the night
• Provides extra lumbar and shoulder support that benefits side sleepers by reducing pressure points
• Certified CertiPUR-US foam ensures no harmful chemicals or fiberglass, making it safe and eco-friendly
• Generous 14-inch height offers a plush yet supportive feel suitable for various body types

Cons:

• The firmness level may feel too supportive for those who prefer a softer mattress
• Limited color option available (green) which may not suit all bedroom decors

The BedStory King Mattress combines the benefits of a hybrid design with advanced cooling gel technology, making it an excellent choice for maintaining optimal sleeping temperature. With its 960+ pocket springs, the mattress offers targeted support that adapts to the body’s natural curves, minimizing motion transfer—a critical feature for couples sharing the bed. The extra lumbar and shoulder support is specifically engineered to relieve pain for side sleepers, promoting proper spinal alignment and reducing discomfort.

Constructed with CertiPUR-US certified materials, this mattress is free from fiberglass and harmful chemicals, ensuring a healthier sleep environment. Its 14-inch thickness provides a luxurious feel without sacrificing support, accommodating various sleeping positions and preferences. Overall, the BedStory King Mattress is a durable and comfortable investment for anyone seeking pain relief and enhanced comfort through cutting-edge mattress technology.

To buy this product, click here.

King Mattress

The King Mattress 14 Inch Cooling Hybrid Bed in a Box is ideal for individuals seeking a perfect blend of comfort, support, and temperature regulation. It is especially suited for those who experience pressure points in the hips, shoulders, and lumbar region and desire a mattress that adapts ergonomically to their body shape. Anyone looking for a durable, motion-isolating mattress with a long trial period will find this mattress a great investment.

Pros:

• Cooling Hybrid Design helps maintain an optimal sleeping temperature throughout the night.
• Individual Pocket Springs provide excellent motion isolation, reducing disturbances from a partner’s movements.
• Targeted Hip, Shoulder, and Lumbar Support offers ergonomic comfort tailored to key pressure points.
• Fiberglass-Free construction ensures a safer and healthier sleeping environment.
• Comes with a generous 365-Night Trial, allowing ample time to test comfort and performance.
• Certified by CertiPUR-US for low emissions and eco-friendly materials.

Cons:

• The mattress weighs 116.86 pounds, which may require assistance during setup or moving.
• The 14-inch height might be too thick for some bed frames or users who prefer thinner mattresses.
• Available only in black color, limiting aesthetic options.

The King Mattress 14 Inch Cooling Hybrid Bed features a smart combination of foam layers and individual pocket springs that work together to provide both pressure relief and support. The ergonomic zones are carefully designed to align with the natural curves of the body, ensuring that the hips, shoulders, and lumbar areas receive targeted comfort. This design promotes healthier spinal alignment and reduces the risk of aches and pains, making it an excellent choice for people suffering from chronic discomfort or recovering from injuries.

Additionally, the mattress incorporates advanced cooling technology to prevent overheating during sleep. The breathable hybrid construction encourages airflow, which helps regulate body temperature and keeps users feeling fresh all night long. The motion isolation properties of the individual pocket springs also contribute to an undisturbed rest, making it ideal for couples. Backed by the CertiPUR-US certification, this mattress guarantees safe materials free from harmful chemicals, enhancing overall sleep quality and peace of mind.

To buy this product, click here.

Frequently Asked Questions

What Makes A Mattress Ideal For Side Sleepers?

Side sleepers need mattresses that relieve pressure on shoulders and hips. Medium-firm, memory foam or hybrid mattresses offer support and comfort, reducing pain and improving sleep quality.

How Does Cooling Gel Memory Foam Benefit Side Sleepers?

Cooling gel memory foam regulates temperature, preventing overheating. It provides contouring support that alleviates pressure points, ideal for side sleepers who tend to sleep warm.

Why Is Motion Isolation Important In King Size Mattresses?

Motion isolation minimizes disturbances from a partner’s movements. This feature ensures uninterrupted sleep, especially beneficial for couples sharing a king size mattress.

How Do Pocket Coils Enhance Mattress Support?

Individual pocket coils provide targeted support by responding independently to body weight. They improve spinal alignment and reduce motion transfer, enhancing comfort for side sleepers.

What Is The Significance Of Edge Support In Large Mattresses?

Edge support prevents sagging and increases usable sleeping surface. It provides stability when sitting or sleeping near the mattress edges, enhancing overall comfort and durability.

Are Hybrid Mattresses Better For Back And Neck Pain Relief?

Hybrid mattresses combine foam and coils for balanced support and pressure relief. They maintain spinal alignment, which helps alleviate back and neck pain effectively.

Conclusion

Choosing the best king size mattress for side sleepers in 2025 means finding comfort and support together. The mattresses listed offer features like cooling gel foam, pocket springs, and pressure relief. These help reduce pain in the shoulders, hips, and back, making sleep more restful.

Medium firm and plush options suit different preferences, while motion isolation keeps disturbances low. Breathable materials keep you cool through the night. Edge support adds durability and space. Whether you prefer a 12-inch or 14-inch mattress, these choices provide both comfort and health benefits.

Side sleepers need proper spinal alignment, and these mattresses meet that need well. Remember, a good mattress can improve your sleep quality and overall well-being. Take your time to pick one that fits your body and sleep style. Sweet dreams start with the right mattress.