King Koil Bed Review

Overall Rating



Comfortable beds loved around the world.

Life Span7.2
Support & Comfort8
Motion Isolation8.2
Value for Money8.2


Founded in 1898, with a century-long history, King Koil is a mattress manufacturing company with its bedding products mainly used in many hotels and available in retail stores around the United States and 80 other countries in the world. The price varies according to the model you chose, and it is significantly less expensive than the average mattress. On the whole, the price of King Koil mattress ranges from $250 to $2,700. However, you need to pay additional money if with foundations.

King Koil has developed a variety of products that can meet almost all your expectations from a mattress. In case that you get confused by so many choices and fail to purchase the most suitable mattress, we present you with detailed information in this review. Let’s start with the pros and cons of this brand.

The Good
The Not So Good
Affordable price
Questionable durability
Limited heat retention
Sagging problems
Limited initial odor
Limited specification disclosed
No noise issue
Limited availability

Detailed Evaluation


King Koil offers several collections and dozens of mattresses made of innerspring, memory foam, and hybrid materials. The table below has made a summary of the specifications of the mattress, such as size, price, type, thickness, and more.

Size Price Range Mattress Type Thickness Firmness Comfort Layer
Twin, Full, Queen, King $250 - $2,700 Innerspring 9-17'' Soft to firm
Foam, memory foam, latex

Durability & Firmness

Compared to other brands of mattresses, King Koil performs a little worse in the aspect of durability because some of its cheaper products tend to break down after several years' use. Rated as soft to firm, the firmness of King Koil mattress is medium-firm on average after the break-in period based on the owner experience data.

Conforming Ability

As for the conforming ability, King Koil performs best with those mattresses made from memory foam or latex that provides a pressure-point-free sensation. Therefore, it can contour well to your body and benefit your health with a relaxing sleep.

Motion Isolation & Edge Support

In the aspect of motion isolation, King Koil performs differently depending on the model. Mattresses with independently pocket coils can absorb the movement made from one sleeper to another. Besides, it performs well for people who like to sit or sleep at the edge of the mattress because of the superior edge support. However, it may wear within a couple of years' use because King Koil is often made of foam.

Couple Friendly & Topper Usage

The King Koil mattress has less durability and comfort than the memory foam mattress. Therefore, it will be an issue for some people when it comes to the aspect of sex. King Koil performs better than the average mattress and its main competitors. It all depends on personal needs whether to add a topper on the bed or not.

Initial Odor & Sleeping Hot

People seldom complain about the problem of unpleasant odor of the King Koil mattress. One of the advantages of King Koil is that it doesn't have the issue of heat retention that makes people feel uncomfortable when they wake up in the morning.

Break-in Period

It takes about 12 days for people to get adjusted to the basic type mattress of King Koil. However, the break-in period for the mattress with at least two inches of memory foam tends to be longer.

Move & Maintain

King Koil is hard for people to handle and lift due to its heavy weight about 60-140 pounds, heavier than that of the average mattress. Designed with no flip, it will be necessary for users to rotate King Koil mattress 2-3 times a year to fight against the sagging problem.

Person Size & Sleep Position Suitability

The following table describes how the King Koil mattress performs for sleepers who weigh differently and sleep in various positions. We can draw a safe conclusion that King Koil mattress suits almost all the sleepers, and you can choose the most satisfying one according to your own needs.

Sleep Position Ave-sized People (130-230 lbs) Large-sized People (230+ lbs)
Small-sized People (Under 130 lbs)
Back Sleep Friendly Very Good Very Good Very Good
Side Sleep Friendly Very Good Very Good Very Good
Stomach Sleep Friendly Very Good Very Good Very Good

Customer Service


The King Koil mattress needs to be rotated 2-3 times a year regularly to prevent its wear and sagging though designed with no flip. Compared to other brands of mattress, King Koil may have a comparatively more extended warranty that lasts about 25 years for some specific model.