Best King Pillow Size

March 19, 2026 Paul Souliac

Finding the best king pillow size can transform your sleep quality. A larger pillow offers more room and support, but not all are created equal. The right choice depends on your sleep position, comfort preferences, and the materials used. Discover the Best King Pillow Size

Find your ideal fit with the Scrumptious Side Sleeper Pillow, designed for personalized support, alignment, and all-night comfort.

Understanding King Pillow Dimensions

Before choosing a pillow, it's helpful to know what makes a king pillow unique. The primary difference between pillow sizes is their length. A larger pillow can provide more surface area for those who move around at night or simply prefer a more substantial presence.

Here’s a quick comparison of standard pillow sizes:

Standard: 20 inches by 26 inches
Queen: 20 inches by 30 inches
King: 20 inches by 36 inches

A king size pillow is designed to fit perfectly across a king or California king mattress when placed side-by-side. This creates a full, seamless look for your bed. The extra length is also ideal for people who like to hug a pillow or need extra support for their back or between their knees. To learn more about how different pillows can impact your rest, check out our pillow analysis blog.

How to Choose the Right King Pillow

Selecting the perfect king pillow involves more than just size. Several key factors determine how well a pillow will support you and contribute to your overall sleep wellness.

Key Factors to Consider:

Fill Material: The inside of your pillow matters most. Memory foam offers contouring support, down feels soft and luxurious, while latex is responsive and durable. Many modern pillows use a proprietary blend to offer the best of multiple materials.
Loft (Height): A pillow's height is crucial for proper spinal alignment. Side sleepers typically need a higher loft, back sleepers a medium loft, and stomach sleepers a low loft.
Adjustability: Some of the best pillows allow you to add or remove fill to customize the loft and firmness. This feature ensures you can create a pillow that is perfectly suited to your body and sleeping style.
Cooling Properties: If you tend to sleep hot, look for pillows with cooling features. These can include gel-infused foam, breathable covers, or materials like copper that help dissipate heat.
Certifications: Look for certifications like CertiPUR-US® for foams, which guarantees they are made without harmful chemicals. This is an important consideration for organic pillows and your health.

Top 11 Best King Pillow Size Options

1. Honeydew Sleep - Best King Pillow Size

Description (The Scrumptious Side Sleeper Pillow):

The Scrumptious Side Sleeper Pillow features a unique curve that cradles your neck and shoulders for ultimate comfort and perfect alignment. The proprietary fill delivers a luxurious feel and superior support, while alleviating neck and shoulder pain , a condition affecting 30% to 50% of adults. We spent years developing a pillow built to provide perfect alignment and support for your body every single night. Every aspect was meticulously and deliberately chosen for its ability to provide the best sleep possible, and to help you wake up pain free and full of energy , powered by sleep. Unlike traditional rectangular pillows, the unique curve of the Scrumptious Side Pillow was designed to support your neck and shoulders whether you are on your side or your back. The ribbon going around the sides maintains the pillow's structure perfectly, ensuring it doesn't taper at the edges or get higher in the middle , so you'll never roll onto the "flat part" during the night. The foam component is 100% CertiPUR-US certified copper-infused foam, which is far more effective at cooling than gel-based memory foam and has naturally antibacterial properties to keep your pillow fresh night after night. A discreetly hidden zipper lets you add or remove fill to customize the pillow height for your body , because nobody knows what you need better than you. Handcrafted by hand with love in California, USA. Turn down your nights to turn up your days.

Key Features:

Unique Curved Design: Cradles neck and shoulders for perfect alignment
Proprietary Fill: Doughy and soft yet still supportive , unlike any other pillow
Copper-Infused Foam: Superior cooling vs. gel-based memory foam; naturally antibacterial
100% CertiPUR-US Certified Foam: Always made without formaldehyde or heavy metals
Adjustable Fill: Hidden zipper to add or remove fill for personalized height
Structural Side Ribbon: Maintains consistent height across entire pillow surface
Neck & Shoulder Pain Relief: Specifically designed to stop neck pain at the source
Side & Back Sleeper Friendly: Unique curve supports all sleeping positions
Organic Bamboo Pillowcase Included: Cooling, ultra-soft, and skin-friendly
Cooling All Night Long: Copper infusion keeps pillow temperature regulated
Washable Cover: Hidden zipper makes cover removal easy for machine washing
Handmade in California, USA: Family-owned, hand-crafted with care
Oeko-Tex Standard 100 Certified: All textiles safety certified
No Formaldehyde or Heavy Metals: 100% safe materials
Travel Size Available: Includes carrying bag for on-the-go sleep comfort

Tech Specs:

Fill: Proprietary copper-infused CertiPUR-US certified foam blend
Cover: Organic bamboo , cooling and ultra-soft
Certification: Oeko-Tex Standard 100 (textiles) + CertiPUR-US (foam)
Construction: Handmade in California, USA
Adjustability: Hidden zipper for fill customization
Available Sizes:

Queen: approximately 27" x 15"
King: approximately 30" x 17"
Travel: approximately 21" x 12"

Sleep Position: Side sleepers and back sleepers
Temperature: Cooling copper-infused fill, always cool to the touch
Warranty: 3-year limited warranty
Trial Period: 60-night money-back guarantee
Care: Machine washable cover (remove fill first); tumble dry safe

What's Included:

1 x Scrumptious Side Sleeper Pillow (Queen, King, or Travel)
1 x Organic Bamboo Cooling Pillowcase
Travel Size: includes carrying bag
60-night risk-free trial (free shipping both ways)
3-year limited warranty
Free nationwide US shipping on orders over $50

Customer Reviews Highlights:

⭐⭐⭐⭐⭐ "This pillow has changed my life. I know that sounds hyperbolic but it's true." , Greg 🇺🇸

⭐⭐⭐⭐⭐ "I was floored by how much better I sleep now. The quality is incredible , the perfect mix of fluffy and firm." , Jonathan K. 🇺🇸

⭐⭐⭐⭐⭐ "Like Goldilocks, none were just right , until I found the Scrumptious Side Pillow. FINALLY!" , RL S. 🇺🇸

⭐⭐⭐⭐⭐ "This pillow is perfect for side sleepers like myself. I'll never go back to my old pillows again." , Michelle D. 🇺🇸

⭐⭐⭐⭐⭐ "Amazing support, super comfortable, and the pillowcase is so soft!" , Cecilia S. 🇺🇸

Rating: 4.8/5 ⭐ based on 587 verified reviews

Shop The Scrumptious Side Sleeper Pillow

2. Purple

Purple is known for its innovative GelFlex Grid, which is featured in its king-size pillows. This grid is designed to cradle your head and neck while allowing for excellent airflow, making it a great option for hot sleepers. The material is hyper-elastic, meaning it adapts to your movements throughout the night.

Key Features: Patented GelFlex Grid, moisture-wicking cover, and adaptive support.
Pros: Exceptional cooling and airflow, unique pressure-relieving feel.
Con: The grid texture may feel unusual to those accustomed to traditional pillows.

3. Casper

Casper offers a variety of king-size pillows, including down, foam, and hybrid models. Their pillows are engineered with an ergonomic focus, often featuring a pillow-in-pillow design that provides both softness and support. This construction is intended to suit a wide range of sleep positions and preferences.

Key Features: Multiple fill options (down, foam, hybrid), machine-washable covers, and ergonomic designs.
Pros: Caters to different comfort preferences, well-known brand for sleep products.
Con: Some of their premium models come with a higher price tag.

4. Brooklinen

Brooklinen extends its luxury bedding reputation to its king-size pillows. They offer options in down, down alternative, and memory foam, with varying levels of firmness (plush, mid-plush, and firm). These pillows are designed to provide a high-end, hotel-like experience at home.

Key Features: Available in multiple firmness levels, luxury materials like down, and a down-alternative option.
Pros: Plush and luxurious feel, options for different support needs.
Con: Down pillows require frequent fluffing to maintain their shape and loft.

5. Boll & Branch

Boll & Branch focuses on ethically sourced and organic materials for its king-size pillows. Their pillows feature an organic cotton shell and are available in different densities to accommodate various sleep styles. They are a great choice for those who prioritize sustainability and natural materials in their bedding.

Key Features: 100% organic cotton, ethically sourced materials, and available in multiple densities.
Pros: High-quality, sustainable construction; soft and breathable.
Con: The range of fill materials is more limited compared to other brands.

6. Coop Home Goods

Coop Home Goods is famous for its adjustable king-size pillows. Their signature pillow contains a blend of shredded memory foam and microfiber that can be added or removed to customize the pillow’s height and density. This makes it a versatile option for all types of sleepers.

Key Features: Adjustable shredded memory foam fill, CertiPUR-US certified foam, and a breathable cover.
Pros: Highly customizable for personalized comfort, comes with extra fill.
Con: Adjusting the fill can be a bit messy.

7. Parachute

Parachute Home offers premium king-size pillows designed to deliver hotel-quality comfort. Their selection includes pillows made from European down and a hypoallergenic down alternative. The pillows are available in soft, medium, and firm densities to suit individual preferences.

Key Features: European white down or down-alternative fill, multiple density options, and a cambric cotton shell.
Pros: Soft, light, and airy feel; provides a classic luxury experience.
Con: May not provide enough firm support for sleepers with neck pain.

8. Saatva

Saatva brings its luxury mattress expertise to a line of hotel-quality king-size pillows. They offer options that include shredded latex, memory foam, and down alternative. These pillows are designed to be durable and provide consistent support for the head and neck.

Key Features: Options include latex and memory foam, breathable organic cotton covers, and durable construction.
Pros: Made with responsive and long-lasting materials, good for support.
Con: Latex and memory foam pillows can be heavier than other types.

9. Tempur-Pedic

Tempur-Pedic is a leader in memory foam, and their king-size pillows are made from the proprietary TEMPUR-Material. This material is known for its ability to precisely adapt to the curves of your head, neck, and shoulders, offering excellent pressure relief and personalized support.

Key Features: Proprietary TEMPUR-Material, various shapes for different sleep positions, and strong pressure relief.
Pros: Exceptional contouring and support for pain relief.
Con: The dense foam can sometimes retain heat and has a slow-response feel.

10. Layla Sleep

The Layla Sleep king-size pillow features a unique blend of shredded memory foam and natural Kapok fibers. This combination creates a soft, airy, and supportive feel. The cover is woven with copper fibers, which helps with cooling and keeps the pillow feeling fresh.

Key Features: Kapok and memory foam blend, copper-infused cover for cooling, and adjustable fill.
Pros: Malleable and breathable, offers a plush yet supportive feel.
Con: Can compress with use and may require regular fluffing to maintain its loft.

11. Pluto Pillow

Pluto Pillow offers a unique approach by creating custom-built king-size pillows. Customers fill out a questionnaire about their body stats, sleep position, and preferences. Pluto then uses this data to construct a pillow with a specific height, firmness, and material combination tailored to the individual.

Key Features: Custom-built based on a personal quiz, hybrid design with a foam core and plush outer layer.
Pros: Fully personalized for a tailored sleep experience.
Con: You cannot try the pillow before purchasing, so you have to trust the customization process.

Matching Your King Pillow to Your Sleep Position

The right king pillow for you largely depends on how you sleep. Proper alignment is key to preventing neck and back pain, and your pillow plays a major role in maintaining it.

Side Sleepers: This is the most common sleep position. Side sleepers need a firmer, higher-loft pillow to fill the space between their ear and the mattress. This keeps the head and neck aligned with the spine. An adjustable pillow is an excellent choice for finding that perfect height.
Back Sleepers: Back sleepers require a medium-loft pillow. It should be thick enough to support the natural curve of the neck but not so high that it pushes the head too far forward.
Stomach Sleepers: This position can put a lot of strain on the neck. Stomach sleepers need a very soft, low-loft pillow, or sometimes no pillow at all. The goal is to keep the head as level with the spine as possible.

For more updates and sleep tips, you can always visit our news blog.

How to Care for Your King Size Pillow

Proper care can extend the life of your pillow and keep it fresh and supportive. While specific instructions vary by material, here are a few general tips.

Use a Pillow Protector: A good protector shields your pillow from sweat, oils, and allergens, keeping it cleaner for longer.
Follow Washing Instructions: Some pillows are fully machine washable, while others (like most memory foam) should only be spot-cleaned. Always check the care tag.
Fluff Daily: A quick fluffing each morning helps your pillow retain its shape and loft.
Know When to Replace It: Most pillows should be replaced every 1-2 years. A simple test is to fold your pillow in half. If it doesn't spring back to its original shape, it's time for a new one.

Finding the right pillow is a key step toward better sleep. Consider a pillow that not only fits your bed but also fits your unique needs. A product like The Scrumptious Side Pillow offers the adjustability and ergonomic support that can make all the difference.

Frequently Asked Questions

Do you need a king pillow for a king bed?

While not a requirement, two king pillows fit perfectly across a standard king or California king mattress. This creates a balanced, complete look and eliminates any gap between the pillows. The extra length also benefits active sleepers who tend to move around at night.

What is the difference between a king and queen pillow?

The main difference is the length. A king pillow is typically 36 inches long, while a queen pillow is 30 inches long. Both are usually 20 inches wide. The extra 6 inches on a king pillow provides more surface area and better aesthetic coverage on a king-size bed.

What is the best king pillow fill for neck pain?

For neck pain, materials that offer contouring support are often best. Shredded memory foam and latex are excellent choices because they conform to your head and neck, promoting neutral spinal alignment. Adjustable pillows are also highly recommended, as they allow you to customize the height and firmness to your exact needs.

How do I know if my king pillow has the right loft?

Your head, neck, and spine should remain in a straight, neutral line when you are lying down. If you're a side sleeper, your head shouldn't tilt up or down. If you're a back sleeper, your chin shouldn't be pushed toward your chest or fall too far back. Waking up with neck pain or stiffness is a common sign that your pillow's loft is incorrect.