King Koil Mattress Review

King Koil Mattress Review: A Firsthand Experience

As someone who values a good night's sleep, I was on a quest to find a mattress that could provide both comfort and support. That's when I stumbled upon King Koil mattresses. I decided to dive deep into the world of bedding and give a detailed first-person account of what it's like to sleep on a King Koil. Here's my comprehensive King Koil mattress review.

Overview of King Koil Mattresses

King Koil has been in the bedding industry since 1898, making it one of the time-tested brands out there. They offer a range of mattresses, from traditional innerspring to more modern foam and hybrid options. With a global presence and collaborations like their partnership with the International Chiropractors Association, King Koil has established itself as a brand that aims for quality and ergonomics.

Personal Experience with Comfort and Support

Unboxing and First Impressions

Upon delivery, my King Koil mattress exuded a sense of luxury. The craftsmanship was evident, and I was eager to see if the comfort matched its aesthetic appeal.

Sleeping Experience

The first few nights were transformative. The surface offered a balanced level of softness and firmness, living up to King Koil's reputation for enhanced comfort. My back felt supported, and mornings were no longer accompanied by the usual stiffness.

Breakdown of Materials & Construction

The materials are at the heart of any mattress, and while King Koil is somewhat secretive about the specifics, it's known that they use a variety of foam, latex, and innersprings, depending on the model.

  • Comfort Foam Layers: These provide a plush, cushioning feel.
  • Support Coils: Ensures proper spinal alignment and reduces motion transfer.
  • Edge Support: Delivers a stable sleeping surface to the edge of the bed.

It's worth mentioning that King Koil mattresses are said to use certified foams which are beneficial for reducing potential off-gassing of harmful toxins.

Variety and Options

Hybrid Models

King Koil's hybrid mattresses are a symphony of innerspring support with foam comfort. The hybrid design attempts to offer the best of both worlds and is one of their standout offerings.

SmartLife Collection

Their entry into the smart mattress space offers sleep technology such as adaptive support and sleep monitoring. It's for those who enjoy tech and want to integrate it into their sleep experience, despite the high price tag.

Natural and PureBliss Collections

For the eco-conscious, the Natural and PureBliss Collections are a dream come true. Featuring materials like natural cotton, wool, and Talalay latex, they cater to customers looking for organic and hypoallergenic options.

Price Point Versus Competition

In terms of pricing, King Koil can run on the higher end, especially compared to online mattress-in-a-box companies. However, the brand often includes add-ons or holds sales to bring more value to your purchase.

Heat Retention Issues

One challenge I faced was that, as a warm sleeper, I did notice the mattress retained more heat than I liked. Potential buyers might want to explore other options if they tend to overheat during the night.

Durability and Longevity

From discussions in mattress forums and my own experience, there's a mixed consensus when it comes to King Koil's durability. While initial comfort is often praised, some customers report changes in support over the years.

Customer Service and Warranty

In dealing with King Koil, their customer service was competent, and they offered a warranty, which provided a level of assurance. However, there are reports of folks experiencing warranty claims differently, so your mileage may vary.

Is King Koil Right for You?


  • 1.62x more likely to offer good comfort than the average comparable mattress
  • Variety in mattress types catering to different sleep preferences
  • Innovative options like smart mattresses


  • Higher price point without always clear justification
  • Potential issues with heat retention
  • Some concerns about durability

In summarizing my King Koil mattress review, I would say it's a brand that sleeps comfortably in the short term but may raise potential heat and longevity issues for certain users. If you're enticed by their plush comfort and technological innovations, it might be worth considering. However, if you're more sensitive to heat or tight on budget, you may want to compare with other options on the market.