Mattress Firm Knox Henderson — Bed & Mattress Store Dallas TX
Franchise Owned Clearance Center New & Clearance Showroom 3010 Knox St Dallas, TX, 75205
10:00am- 8:00pm
10:00am- 8:00pm
10:00am- 8:00pm
10:00am- 9:00pm
9:00am- 9:00pm
11:00am- 8:00pm
9:00am- 9:00pm

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 4.7 out of 5 by 95.
Rated 5 out of 5 by from Best Retail Sales and Service Experience in Years Wes Mueller provide us with the best retail sales and service experience that we have encountered in years. Our need was unique as we were purchasing a mattress for a second home in another state. Wes went above and beyond our expectation providing us a great value and ensuring a specific delivery date. In this day and age when retail sales associates are disinterested (at best) it is refreshing to encounter a professional who is well trained and courteous. It's something all together to have a sales associate go the extra mile to solve a complex problem. If you're in Dallas and shopping for a mattress, ask for Wes. This guy is a superstar!
Date published: 2017-11-03
Rated 5 out of 5 by from Great Experience! I came in looking for the sale specials in the paper, didn't see them on display but still stayed looking and trying mattresses, your sales person Wesley was very patient and helpful, he didn't mind showing me the different options according to my likes; end up buying a pillow top set from your home brand and will say I have been sleeping so good on it, will say that your home brand is better than my old name brand mattress.
Date published: 2015-09-10
Rated 5 out of 5 by from Superb Customer Service I'm going through a tough time personally, went into Mattress Firm on Knox and Henderson in Dallas and met an angel. It was only 30 minutes until closing, but Kristin was eager to help. She showed me exactly what I asked for, did not try to talk me into something I couldn't afford, and gave me numerous options on foundations and frames. She was genuine and took the time to get to know what I needed. I've only been sleeping on my new mattress for two nights now, but already it's the best bed I've ever owned. Overall, this was a great experience and I will definitely recommend this Mattress Firm location to everyone I know.
Date published: 2018-04-25
Rated 4 out of 5 by from Great In-Store Experience // Bugs in Bed Frame Deborah was great at listening to what my needs were and then making recommendations accordingly. It's always nice when you feel you're working with more of a "consultant" than a "sales person". The only downside to the experience was I brought home the mattress frame box, opened it, and out crawled a SPIDER that was as big as a quarter. NOT a fun surprise. Another one was dead in the box and also a roly poly looking bug. I examined all legs of the frame very closely to ensure no more bugs or eggs were hiding. I'd recommend having an exterminator come out because THREE bugs in a single box is not a good sign.
Date published: 2017-08-08
Rated 5 out of 5 by from Exceptional Service! I purchased a mattress and pillows from them last week 8/24. Worked with Alicia at their store. She was very professional and knowledgeable of the products. She answered all my questions and patiently walked me through different options based on what I mentioned that I was looking for. Because of her expertise I was able to find exactly what I needed. The entire experience from arriving at the store to receiving the mattress & pillows was fantastic! I'm very happy with the choice I made. I will definitely go back for future purchases and will recommend this store to family and friends.
Date published: 2018-08-28
Rated 5 out of 5 by from Outstanding service! Thank you to your entire staff working the evening I made my purchase! Kristen was absolutely outstanding the way she took special care of me over the phone. She made things super easy and convient! She even let me know the store had rope for me which saved me so much time. The woman and gentleman at the location I went to pick up my item they were also very professional, gave me exceptional service they were accomadting! Thank you so much and I will definitely go back for future purchases and recommend your store to my friends and family
Date published: 2018-05-03
Rated 5 out of 5 by from Super helpful salesperson and the perfect bed! This is the second time I've done business with Mattress Firm at Knox Henderson. This experience was even better than the last. The sales person, Joshua Adrian, answered all of my questions and guided me to a number of choices interjecting suggestions as I described my needs. I wound up, or should I say we wound up selecting the best possible combination of a great hybrid mattress and an adjustable bed frame. I can't tell you how excited I am and how I've had the first good nights sleep in quite some time. I think one has to seriously consider spending a little extra money to get a really quality mattress and let's face it, with 0% financing and two years to pay, I think I've gotten a really sweet deal. I'm excited and I'll be back...someday...again.
Date published: 2017-01-20
Rated 5 out of 5 by from Really nice service! Great products! I've bought bedding over the years at several competitors who were very high on pressure and low on customer service. However, once I found Mattress Firm Knox Henderson, I keep going back! Helpful, nice sales associates who seem to want you to be happy and satisfied with your purchase! I found the the most comfortable mattress I've ever slept on there and subsequently went back to buy a mattress for the guest room. Ditto with the Coconut Bliss Pillows. I finally have the comfy sleeping experience I was searching for!
Date published: 2017-09-22
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