King Koil Brand
Mattress Ratings & Reviews

84/100

Very Good

Based on 1,847 real owner experiences with this brand.

Back Support

Pressure Relief

Sleep Quality

Stays "Cool"

Value

Warranty Service

N/A

Average Lifespan

12.4 Years

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Back Support

Pressure Relief

Sleep Quality

Stays "Cool"

Value

Warranty Service

N/A

Average Lifespan

12.4 Years

Shop this Brand

on kingkoil.com

Not sure this product is right for you?

Take the

GoodBed Match Quiz

Write a review of this product

FILTER

1,847 total ratings, 10 with reviews

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BeverlyPaso Robles, CA

Review left on May 25, 2025

This mattress needs to be renamed the Coma

Absolutely love this mattress I sleep more sound than I have in years. I’ve told my husband we will call it the coma.

This review is for King Koil Brand

Owned for: Less than a year

Condition: Like new

55 - 64 years old

Female

Side Sleeper

150-200 lbs

Prefers Medium

Back Pain (lower / middle), Back Pain (upper / neck), Restless Leg, Sleeping Hot

See full review

ChadHouston, TX

Review left on Feb 10, 2024

Warranty is useless!

This is my second king koil. The 1st one I had 15 years was amazing. I upgraded to the most expensive this time and it’s been horrible. I’ve tried to get the manufacturer to replace it and they have been no help. I will never buy from them again. So sad that they have so little care for their customers or pride in their product.

This review is for King Koil Brand

Owned for: 3 years

Condition: Like new

45 - 54 years old

Male

Side Sleeper

200-250 lbs

Prefers Medium

See full review

HeatherAuburn, WA

Review left on Nov 18, 2022

Sagging within a month

Deep sagging in the center within a month. Horrible support. My 10 year old mattress was better than this new one a month in

This review is for King Koil Brand

Owned for: Less than a year

Condition: Very worn

35 - 44 years old

Female

Stomach Sleeper

150-200 lbs

Prefers Somewhat Harder

See full review

JaySalt Lake City, UT

Review left on Feb 18, 2018

Does not last

Start was good, but poor quality soon showed up. Within 2 years had to replace mattress. Company said they would be happy to take a look at the mattress for possible repairs if we ship it back to them. Easier to just buy something else. Which lasted much much longer. Would not recommend and will not purchase from again.

This review is for King Koil Brand

Owned for: 2 years

Condition: Moderately worn

45 - 54 years old

Male

Side Sleeper

150-200 lbs

Prefers Medium

See full review

MikeOrange, CA

Review left on Jan 18, 2018

Horrible customer service

This is by far the worst customer service I have ever experienced. My mattress started showing manufacture defects around 9 months. I ended up working with an executive trying to get my bed covered by the warranty, he was laid off and i have heard nothing for the last 5 months. My wife and i cannot even sleep in it at this point. Worst service ever.

This review is for King Koil Brand

Owned for: 6-12 months

Condition: Completely worn

25 - 34 years old

Male

Stomach Sleeper

200-250 lbs

Prefers Medium

Acid Reflux, Back Pain (lower / middle), Back Pain (upper / neck), Restless Leg, Sleeping Hot

See full review

BarbTrenton, MI

Review left on Dec 5, 2014

mattress sags 1 inch after 4 months.

King koil will not do anything about this matress. They said it would have to be at least 1 1/2 inch of sagging! THAT IS UNACCEPTABLE. I have a mattress over 25 years old with NO sagging. This was an expensive mattress and I would expect better customer service than this. Do NOT PURCHASE a mattress from king koil!!!!!

This review is for King Koil Brand

Owned for: 3-6 months

Condition: Moderately worn

55 - 64 years old

Female

Side Sleeper

100-150 lbs

Prefers Somewhat Harder

See full review+ 1 comment

RitaHollywood, FL

Review left on Jul 26, 2014

WORST MATTRESS I HAD IN MY LIFE!!!

The plush mattress top is horrible hot I sleep in a hammock

This review is for King Koil Brand

Owned for: 3 years

Condition: Completely worn

55 - 64 years old

Female

Side Sleeper

100-150 lbs

Prefers Somewhat Harder

See full review

Cathy BWalton, NY

Review left on Nov 19, 2012

Don't waste your Money

This is the third mattress. The Sleep Store replaced it twice.We went to 2 twin XLs instead of the King. Within weeks, the mattress sags and there is an indent where your body lays. This makes it uncomfortable to sleep. NOT what we expected for the money. I've written to King Koil and received no response.

This review is for King Koil Brand

See full review+ 3 comments

Lisa DNaperville, IL

Review left on Oct 25, 2010

HORRIBLE MATTRESS!!!

We purchased this P.O.S. mattress from Mattress Giant in 2005. Within 5 months we had them come out because we had deep body ruts that were visible when the bed was made!. At this time they came out and replaced the box springs. After 4 more years the body ruts were so horribly deep in our tempered top that you had to physically pick yourself up to roll over and manually pull yourself out of the bed. After putting up with monnths of discomfort we finally contacted the warranty department who informed us that th 10 year warranty was void because there was a spot on the mattress. (Soda knocked over by the dog!) This King Mattress cost $2700. DO NOT BUY A KING KOIL BED!!!!

This review is for King Koil Brand

See full review+ 1 comment

Brian MNew York, NY

Review left on Dec 12, 2009

Decent Innerspring Mattress with Pillowtop

I purchased this mattress several years ago from the now defunct Rockaway Bedding. Other than the first night getting used to it, I've had fairly restful night's sleep on it with no major complaints.

This review is for King Koil Brand

See full review+ 1 comment

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King Koil Brand
Mattress Ratings & Reviews

This mattress needs to be renamed the Coma

Warranty is useless!

Sagging within a month

Does not last

Horrible customer service

mattress sags 1 inch after 4 months.

WORST MATTRESS I HAD IN MY LIFE!!!

Don't waste your Money

HORRIBLE MATTRESS!!!

Decent Innerspring Mattress with Pillowtop

Find the Right Bed

Compare Side-by-Side

Popular Mattress Comparisons

Discounts

GoodBed Cash Back

Expert Reviews

Popular Online Brands

Popular Store Brands

Write a Review

Mattress 101

The GoodBed Matching Quiz

Expert Reviews

Customer Reviews

King Koil Brand Mattress Ratings & Reviews

This mattress needs to be renamed the Coma

Warranty is useless!

Sagging within a month

Does not last

Horrible customer service

mattress sags 1 inch after 4 months.

WORST MATTRESS I HAD IN MY LIFE!!!

Don't waste your Money

HORRIBLE MATTRESS!!!

Decent Innerspring Mattress with Pillowtop

King Koil Brand
Mattress Ratings & Reviews