Best King Platform Bed

By Geoff McKinnen Certified Sleep Coach

Last Updated On July 11th, 2023
Best King Platform Bed

Those looking for a sturdy mattress foundation for their king bed may want to consider purchasing a platform bed. Platform beds are an excellent choice for most sleepers since they accommodate various mattress types. You can also find them at a budget-friendly price.

Purchasing a platform bed can give your bedroom a sleek and modern style because they usually feature a minimalist design. This can be especially good for individuals with limited bedroom space.

Stylish Support &
Easy To Assemble

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Now let’s take a look at the features of platform beds. Later, we’ll give you our recommendation for the best king platform bed.

Best Amerisleep King Platform Bed

Quick Guide: A 30-Second Summary

Best King Platform Bed Frame Amerisleep Platform Bed
Best Mattress for a Platform Bed Amerisleep AS3

We offer the Amerisleep Platform Bed Frame in all standard sizes, but our king size is perfect for people who want a spacious bed to share or the luxury of personal space.

Platform Bed Highlights
  • Durable hardwood slats and frame for longevity
  • Wider than usual slats minimize unsupport spaces
  • Air circulates freely between bed slats
Recommended For
  • Budget shoppers and bargain hunters
  • Hot sleepers
  • All sleeping styles

Our recommendation for the best platform bed is the Amerisleep Platform Bed Frame. It is an excellent addition to a master bedroom and accommodates all mattress types. This bed stands 13 inches tall, providing you with plenty of storage space underneath your bed.

The Amerisleep Platform Bed features hardwood in the side rails, center support, and slats. Each slat is extra wide to provide maximum support. You shouldn’t run into any problem while assembling your bed frame since it doesn’t require any tools.

Amerisleep offers free shipping with every mattress foundation and a 1-year warranty. The Amerisleep Platform Bed is available to customers in the usual bed frame sizes.

Save with Free Shipping on the Amerisleep Platform Bed with our discount code
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The Amerisleep AS3 is our most popular mattress model because it suits a wide variety of sleep styles. We recommend it for most sleeping positions. Couples also find it provides a good compromise between comfort preferences.

Mattress Highlights
  • Plant-based memory foam relieves pressure points
  • Five zones of targeted support for more comfort
  • Sturdy and supportive base poly-foam
Recommended For
  • Side, back, and combination sleepers
  • Couples
  • Hot sleepers

Are you looking for a mattress to pair with your platform bed? We recommend the Amerisleep AS3. This model features supportive technology to adapt to different sleeping styles, making it the perfect option for all sleepers. Not to mention, it’s the brand best seller.

The Amerisleep AS3 model is 12 inches tall memory foam mattress. Its comfort layers are made with 3 inches of Bio-Pur® memory foam. Bio-Pur® contains renewable plant-based oils to help promote a sustainable environment. Amerisleep Bio-Pur® offers sleepers a more responsive sleeping surface to keep you from feeling stuck in your bed. Its porous structure also facilitates better airflow through the mattress.

Its second layer is constructed with HIVE® technology provides sleepers with more pressure point relief. This transitional layer features hexagonal-shaped cutouts formed in five comfort zones. Additionally, it offers zoned support for under the shoulders and hips and a firm surface under the head, back, and legs to prevent sinkage.

The base of the mattress contains Bio-Core®, Amerisleep’s supportive base foam. This layer helps evenly distribute body weight across the sleep surface and provides structural support.

With every mattress purchase, Amerisleep extends a 100-night sleep trial and a 10-year warranty. The AS3 is available in seven standard mattress sizes.

Shoppers can also consider the AS3 Hybrid, which replaces the Bio-Core® layer with a base of pocketed coils.

Save $300 on the Amerisleep AS3 with our discount code
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What is a Platform Bed?

A platform bed is a type of bed frame that has a thick, sturdy built-in foundation. These beds are cost-effective since sleepers do not have to buy a separate bed frame for their mattress. The built-in foundation features either a solid or slatted base where your mattress sits. Most platform beds are made with metal frames made of iron or steel with metal grids on the surface.

If you choose a platform bed frame with a solid surface, you may notice holes or channels in the base. These channels help promote better airflow to your mattress.

Slatted bases usually provide the most breathability for your bed, but you’ll want to make sure the space between the slats is no more than 2 to 3 inches apart. The closer your slats are, the better. If your slats are too far apart, it could affect the overall support of the mattress, causing it to sag or sink.

The great thing about platform beds is they accommodate all modern mattresses. They are especially great for:

Plus, they are an excellent alternative to traditional box springs, so you can easily place an innerspring mattress on them.

Benefits of Platform Beds

There is so much to gain from purchasing a platform bed. For instance, platform beds are compatible with most mattress types, offering you universal comfort. Platform beds also allow more airflow than traditional box springs, which helps prevent the growth of mold and mildew. This is especially great for memory foam, latex, and hybrid mattresses since these beds have foam layers that tend to retain moisture.

They also come in several styles, giving your bedroom a sleek and modern aesthetic. Some platform beds come even come with an upholstered headboard made with velvet or leather. An upholstered platform bed frame is ideal for decorating your bedroom since there are so many different designs.

Other platform beds can be more minimalistic and may have a solid wood frame. A wood platform bed will typically have wooden slats as well. Each slat is usually wrapped in a non-slip covering to prevent your bed from sliding. When wood slats are placed correctly on your bed, it helps reinforce the durability of your mattress.

There is also a metal platform bed available for purchase. These beds have a steel frame to offer sleepers sturdy support. It’s common for platform beds to include storage drawers for you to keep bedroom items stowed away.

Platform beds are affordable and do not require individuals to buy a bed frame since they are built-in. Plus, they offer sleepers with a sturdy and firm surface to enhance the comfort of your mattress.

Another benefit of platform beds is they are low-profile beds. Platform beds are usually set low to the ground to increase stability. Low profile bed are great for individuals with joint pain or disabilities as it makes it easier for them to get into bed.

Drawbacks of Platform Beds

Though a low-profile platform bed is great for individuals with limited mobility, it may not be the best choice for all sleepers. Some sleepers may have to squat or crouch to get into bed, which can be uncomfortable during the middle of the night. Also, when your bed is so close to the ground, it doesn’t leave much room for under-bed storage space.

If you are looking for a bed that provides extra storage space, A good rule of thumb is to leave about 8 or 9 inches of clearance underneath your bed. A firm surface can cause pressure points for more sleepers. It may be a good idea to look at other foundations if you like a softer sleeping surface. Alternatively, you can try a set of bed risers.

Things to Consider

While shopping for your new bed frame, it’s always a good idea to make a list of things to remember before you make your purchase. Next, we’ll take a look at all the things you should check off your list while shopping for the best bed frame.

Assembly and Installation

Most high-quality mattress foundations are easy to install and will not require any additional tools. The instructions are usually easy to follow so, you should be able to put together your bed in 30 minutes or less.

Carefully read your instruction manual before assembling your bed frame to ensure you have all the proper tools in your kit. Be sure to provide yourself with plenty of space to put your frame together. This will make it easier for you to access the parts of your bed frame.

If you don’t want to go through the trouble of installing your platform bed on your own, you can always look at manufacturers that offer in-home installation. This way, you’ll know your bed is assembled correctly.

Weight Limits

Most bed frames come with weight restrictions. Sometimes the weight of your mattress plus your body weight can be too much for a bed frame. This is particularly the case when sleepers purchase cheaper options. Some platform beds can hold up to 800 pounds, and it’s worth mentioning that these beds usually come with a higher price tag.

To make sure you stay as safe as possible, double-check weight restrictions before you make your purchase.

Preferred Height

You don’t want a foundation that is too high and will require you to use a step to climb into bed. On the other hand, you also don’t want something too low to force you to squat to get out of bed.

The height of a mattress foundation should be at least 8.5-inches. This height is usually comfortable for most people. When it comes to the best bed height, we recommend a height that lets you rest your feet on the floor and keeps your knees level with the mattress surface.

You can increase your bed height with a set of safe bed risers, though you will need to know the combined weight of your mattress, frame, and body.

Consider Room Size

Depending on the size of your platform bed, it may take up a lot of space. Some platform beds feature bulky headboards or footboards and can make your bedroom feel too crowded. Before committing to a foundation, consider how much space you would like your bed to take up.

Make sure to account for other bedroom decor items like dressers and nightstands. If you have a bed with a tall headboard or additional storage items, we recommend placing your bed in a larger bedroom.


It’s essential to take note of your mattress warranty before you purchase a foundation. Your warranty covers defects in the materials and workmanship of the bed. However, you can void your warranty if you place your mattress on a foundation that the manufacturer does not approve.


Are platform beds available in all sizes?

Platform beds are usually available in all standard mattress sizes: twin, twin XL full, queen, king, and California king. In most cases, your foundation will be compatible with your mattress size. Be sure to read over your manufacturers’ dimensions guide before purchasing to ensure you are buying the correct frame.

How much do platform beds cost?

Platform beds are an affordable choice for individuals with a tight budget. You can typically find a platform bed for as low as $250. Some luxury platform beds may feature LED lights or USB ports and can cost up to $500.

Is a platform bed better than a box spring?

We recommend using a platform bed since modern-day mattresses do not need a box spring. Innerspring mattresses work well with box springs, but you can also use these mattresses with a platform bed for a more even surface.

Traditional box springs are made with coils, and they may not give you the support you need. Using a foundation with solid or slatted reinforcement is a better choice for mattress longevity. See our platform bed vs box spring guide for more information.

How much weight can a platform bed hold?

The amount of weight your mattress can hold will depend on the construction of your bed. Some platform beds can hold up to 800 pounds, while others may only hold 500 pounds. It’s best to check the weight limits of your foundation before you make your purchase. Remember, your foundation will need to hold the weight of your mattress and your body weight.

How thick should a mattress be for a platform bed?

Your mattress should be at least 12 inches thick if you’re using a platform bed. Your mattress thickness will be determined by the construction of your bed. It’s best to stay away from mattresses less than 10 inches thick. These beds may not provide you with the proper support.


Platform beds are popular because they pair well with any type of mattress. These foundations come in many styles to keep your bedroom looking modern and sleek. They are a cost-effect buy since you can usually find them at an affordable price. Not to mention, they last longer than traditional foundations, such as box springs.

About the author

Geoff McKinnen is a writer focusing mainly on the healthcare industry and has written articles on everything from foods to help you lose weight to the connection between Alzheimer’s and sleep. Geoff’s passionate about helping readers improve their well-being to lead happier lives. Outside of work, Geoff enjoys cycling and hiking and believes that by leading a healthy lifestyle, he can help others do the same.

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