Address: 4701 W. Empire Pl. Sioux Falls, SD 57106 View Map
Phone: (605) 371.4540

Facebook:  comfortkingsd

About Us

We're building the best mattresses in the world!

Yes it’s a bold statement, but we genuinely believe that we have the best mattresses in the world and we’d like to invite you to check them out.  Our mattresses are built using the finest components in the industry, while giving you world-class service.

All of our mattresses are created at our store and carry the Lifetime Comfort Guarantee.

Lifetime Comfort Guarantee

A real guarantee that covers your changing needs!

Comfort King stands behind every mattress set we build. That’s why our mattresses are guaranteed comfortable for the LIFE OF THE MATTRESS. When you buy a Comfort King, you not only get more mattress for less, you also get our Lifetime Comfort Guarantee. 1 year, 5 years, even 10 years… it doesn’t matter, if you want a different feel we’ll adjust your mattress as long as you own it… guaranteed! You simply pay for whatever materials you want to add to your bed. It’s all in your hands! Please note: Transport and materials fees will apply. Comfort King will waive any Labor fees on any Comfort King mattress. We do not offer this service to other brands. Due to the hygenic issues involved , we cannot except returns on any used mattress. Contact your local store for details.

Comfort King FAQ

What size sleep sets do you offer?
Comfort King offers sleep sets in the following sizes:
Standard Sizes
King – 76″ x 80″
Queen – 60″ x 80″
Full – 54″ x 74″
Twin – 38″ x 74″

Specialty Sizes

California King – 72″ x 84″
Full Extra Long – 54″ x 80″
Twin Extra Long – 38″ x 80″

These are approximate finished sizes (+/- 1″) as provided by the International Sleep Products Association.

If you’re looking for a new sleep set for an adjustable bed, boat, RV, antique bed, heart-shaped bed, or round bed, Comfort King can custom-build any size and shape just for you! Specialty-size mattresses can typically be assembled and delivered to you in less than two weeks. Contact your local store for details.

Can you make me a mattress for my antique bed?
Yes. Comfort King can custom-build a sleep set for you in any size or shape. For antique beds, we recommend you measure the width and the length of the inside of the bed frame prior to speaking with a local store. Alternatively, we can measure the antique bed for you. Specialty-size mattresses can typically be assembled and delivered to you in less than two weeks. Contact your local store for details.

Does Comfort King offer foam mattresses?
Yes. We can order foam cores in any dimension with a variety of density/firmness options. Please allow up to 4 weeks for custome foam orders

Can I purchase a mattress only?
Yes, you can purchase a mattress only. However, your mattress is only as good as the support beneath it. We recommend purchasing a mattress and a foundation at the same time in order to receive the best comfort and support.

Why should I buy a mattress and a foundation at the same time?
A mattress and a foundation are designed to work together. An old foundation will usually lack the uniform support that is necessary for your new mattres; resulting in premature “sagging”. We recommend purchasing a new mattress and foundation at the same time in order to receive the best comfort and support.

What does Comfort King’s warranty cover?
Comfort King guarantees all sleep set purchases from defects in workmanship and materials on a 100% non-prorated basis. Should service be needed, your mattress or foundation will be repaired (at Comfort King’s discretion) at no charge. You are responsible for any transportation charges. If you do not live in the area in which you purchased your mattress set, long distance transportation costs apply. Contact your local store for details. This warranty does NOT cover normal wear, including body impressions less than 1.5 ” deep.

I moved away from my original place of purchase and I have a service issue. What should I do?
In the event your mattress or box spring needs servicing, please contact the Comfort King location at which it was originally purchased.

Do you offer shipping to areas where there isn’t a Comfort King? What are the shipping costs?
Yes, Comfort King will ship products to you even if there is no Comfort King location in your area. Customers are responsible for shipping costs, which vary by product and destination. Contact the closest Comfort King location to you for details.

Comfort King was started by two entrepreneurs – Chris Larson & Randall Dolter – in 1994 in Sioux Falls, SD. Their vision involved designing & selling directly to the end-user a hand-crafted mattress, for a lower price than the traditional retailers, while offering an innovative level of long-term service.

In 1997, Comfort king opened their second location in Fargo, ND.

Now that we have moved into our new location in Fargo (Nov 2007), Comfort King owns the property & buildings in both of our markets, which is a testament to #1 our commitment to this industry & #2 the financial stability of our company.

Thank you! to all of our patrons over the past 22 years. Without your trust and wise choice to purchase our quality product, we would not be here today.

Additional Location:
4523 23rd Ave SO. Fargo, ND 58103
(701) 237.9520
Map Location

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