Mattress Firm Knox-Henderson — Bed & Mattress Store Dallas TX
Franchise Owned Clearance Center New & Clearance Showroom 3015 Knox St Dallas, TX, 75205
10:00am- 8:00pm
12:00pm- 6:00pm

This store accepts donations

How do we stack up?

Mattress Firm LogoGallery Furniture LogoRooms To Go LogoMattress 1 Logo

# of Houston Locations

Over 100 Houston Locations

3 Houston Locations

4 Houston Locations

100 Houston Locations

Comfort Guarantee

120 Night Sleep Happy Guarantee

90 Days

48 Hours after Delivery

180 Days

Mattress Selection






Offer 3 ways to get it delivered to give you choice, convenience and satisfaction. Order before 3pm and get it delivered SAME DAY. 3 Hour Delivery Window.

Same day within 100 miles of Houston location. 6 Hour Delivery Window.

$49.99 Delivery

Free Delivery


Mattress Firm Logo
  • # of Houston Locations: Over 100 Houston Locations
  • Comfort Guarantee: 120 Night Sleep Happy Guarantee
  • Mattress Selection: 108
  • Delivery: Offer 3 ways to get it delivered to give you choice, convenience and satisfaction. Order before 3pm and get it delivered SAME DAY. 3 Hour Delivery Window.
Gallery Furniture Logo
  • # of Houston Locations: 3 Houston Locations
  • Comfort Guarantee: 90 Days
  • Mattress Selection: 27
  • Delivery: Same day within 100 miles of Houston location. 6 Hour Delivery Window.
Rooms To Go Logo
  • # of Houston Locations: 4 Houston Locations
  • Comfort Guarantee: 48 Hours after Delivery
  • Mattress Selection: 56
  • Delivery: $49.99 Delivery
Mattress 1 Logo
  • # of Houston Locations: 100 Houston Locations
  • Comfort Guarantee: 180 Days
  • Mattress Selection: 63
  • Delivery: Free Delivery

Mattress Firm Knox-Henderson | Beds & Mattresses Store Dallas TX 75205


At Mattress Firm’s locations in Dallas, TX, you won’t believe how far your budget stretches.

As America’s favorite neighborhood mattress store, we started as a handful of mattress stores more than 30 years ago in Houston and have since evolved into the nation’s largest mattress retailer. No matter what your sleep style is, we’ll always have your back, side and stomach, and we won’t rest easy until you do.


We constantly refine our selection to fit everyone’s specific sleep needs, matching millions of people with the perfect mattresses that perfectly fit their budgets. Whether you’re dealing with snoring or backaches, have trouble falling asleep regularly or the time has simply come to replace your old mattress, we’re here to help. Everybody and every body is different. So, at Mattress Firm locations in Dallas, TX, we carry a variety of brands and construction types, ranging from traditional innerspring to hi-tech hybrids and memory foam from brands you love, like Sleepy’s, tulo, Beautyrest, Serta and more.


120 Night Sleep Trial

We’re so confident we’ll match you with the right mattress, you can take it home and sleep on it for 120 nights. If it’s not the perfect fit, we’ll happily pick it up and pair you with a new one.

120 Night Low Price Guarantee

We’re making a promise to help you sleep easier. We’ll beat any price on comparable mattresses, even ones you buy from us, for up to 120 nights. Just show us, and we’ll refund you.

A Convenient Delivery

We have delivery options that fit your schedule. We offer same-day delivery on some orders, which rolls out the red carpet upon arrival. Or maybe you’d like the simplest shipping method—our bed in a box options—that literally bring your mattress to your doorstep. We have something that conveniently fits your schedule.

Mattress Firm Knox-Henderson is rated 4.6 out of 5 by 88.
Rated 5 out of 5 by from Great Service I recently moved to Texas from Alaska and had no furniture, not even a bed. Friends of mine highly recommended a Tempur-pedic from Mattress Firm. They raved about their experience and the sales people. I am a very informed consumer and usually go in knowing more about a product than the sales person. Not so with Mattress Firm. The sales person at Mattress Firm was able to answer all of my questions, even questions I didn't realize I had, and quickly completed my purchase with very little effort. It was just as my friends had said - easy, informative, and actually fun, which is never how I thought I would describe a mattress buying experience.
Date published: 2015-09-29
Rated 2 out of 5 by from Worse than buying a used car I'd rather buy a used car than another mattress. From ge start we were taken to an $8000 mattress, never asked what price point we were trying to stay within. We're shown mattresses that were all over $3000 for 30minutes until I stopped and said "let's get on the same page my budget is $1500 all in. Then when I finally picked a mattress for no other reason than wanting to leave, there was a never ending list off attempted add on sales. Which I understand but take a clue when I say no to the first 3 just stop. Good news is I don't have to go back for another 7years so that is a positive
Date published: 2016-09-02
Rated 5 out of 5 by from Blown away! We were in to shop for a mattress for our son and were greeted by Ryan Waggoner. He quickly assessed and fully engaged our son into educating him on all the colors, styles and options. The thing that blew us away was that at the end before our son's decision, Ryan recapped every bed, how our son said he felt on them and narrowed it down to 2, then confirming the final choice-what a chronological memory he had! He was very efficient and capitalized on the fact that our son sleeps "hot", so we got the cooling mattress cover and two pillows, as well as our own mattress cooling pad for ourselves. It was more than we had planned to spend but well worth the education we got as a result! Ask for Ryan when you go here!
Date published: 2016-03-27
Rated 3 out of 5 by from Customer service-great; Results- poor I purchased a queen set and the first delivery came with a queen mattress and full box thank you. Next day, after asking before purchasing if they would be able to get the set up my spiral staircase. Needless to say, they tell me I can wait for a third delivery and pay an additional $80 for a split box thank you. Refund please, I don't have time for the another inconvenience. My sales associate was great, so I hope it doesn't negatively affect her.
Date published: 2016-03-05
Rated 5 out of 5 by from Stayed Open Late We stopped by at 7:55 PM two days before Christmas to buy a mattress for our daughter. Wes was just getting ready to lock the door for the evening. He let us into the store and worked with us to find the right mattress for her. (Not too firm, not too soft. Just right.) They did not have it in stock, but another store close by had it. He committed to call me in rhe morning to confirm that it was ready to pick up. As promised, Wes called in the morning. And about we minutes later the mattress was on the way home in the back of my SUV. Thanks, Wes. Outstanding job.
Date published: 2015-12-29
Rated 5 out of 5 by from Exceptional Service Mr. Jose provided superb and expert services. Jose made me and my wife feel special and was very attentive to our wants and needs. Jose's recommendation's to a few of your mattresses were just what we were looking for and at a great price. Me and my wife felt like we got the best deal possible and walked out of Mattress Firm feeling great about our purchase. With now over a week sleeping in our new bed we know our money was well spent and invested. I just hope Jose is still part of your success when we are in the market for another bed.
Date published: 2016-09-29
Rated 4 out of 5 by from followed through as promised The mattress I had originally purchased was not delivered when first scheduled as it was out of stock. The store let me come down and pick a "loaner" until the next shipment of my model came in. Got a call about two weeks later that it was available and they came out the next day and swapped out the two mattresses. Wasn't happy about the initial situation, but they addressed it well and seemed focused on making it right . Even threw in a free hybrid pillow.
Date published: 2018-07-04
Rated 2 out of 5 by from Easy Easy exchange process- sales rep was helpful. Not satisfied with delivery. First mattress- did not receive a call or email the day before like promised. Had to spend 2+ hours on phone to figure out box spring was out of stock and delivery was delayed. 2nd mattress- received an email that my delivery was 10 minutes out. They did not come until an hour later, and both delivery men did not wear shoe protective wear and walked with wet shoes on my carpet.
Date published: 2018-02-15
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