Mattress Firm King of Prussia — Bed & Mattress Store King of Prussia PA
Franchise Owned Clearance Center New & Clearance Showroom 445 W Dekalb Pike King of Prussia, PA, 19406
10:00am- 8:00pm
11:00am- 7:00pm

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 King of Prussia | Beds & Mattresses Store King of Prussia PA 19406


At Mattress Firm’s locations in King of Prussia, PA, 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 King of Prussia, PA, 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 King of Prussia is rated 4.5 out of 5 by 33.
Rated 5 out of 5 by from Thanks, David! I have needed a bed for so long but wasn't looking forward to having to shop for it. I stopped into the Mattress Firm, and the manager David was so helpful! I thought I wanted a firm bed, but David advised me on what I needed based on how I sleep, and other factors and helped me pick out the mattress, frame and headboard... even pillows and sheets! I got an amazing deal, and I completely sleep SOOO much better now! My bed is now my prize possession, so completely perfect and comfortable... and I absolutely LOVE the look of the headboard. Thanks David! I totally appreciate your guidance!!
Date published: 2017-05-11
Rated 5 out of 5 by from Big Thanks to Russ Williams! My son and I stopped by Mattress Firm's King of Prussia location to find a mattress for his new university room. We needed something same-day...and Russ Williams was especially helpful as he showed us options in the store. After discovering that he didn't have what we needed in stock, he didn't hesitate to offer to help us find a suitable mattress at a different Mattress Firm location. He located something for us and sent us off without receiving any 'credit' for the sale. This extra step & Mr. William's kindness saved us *a lot* of time (and, likely, a lot of money) when we were working on a pretty tight schedule. Many, many thanks Mr. Williams - your help was greatly appreciated!
Date published: 2018-06-20
Rated 1 out of 5 by from Don't bother Sales person didn't notice me until my second lap. Smoking a electonic cigarette the whole time. Dirty store looks like its going out of business.
Date published: 2017-03-02
Rated 3 out of 5 by from Service was great. Delivery was a nightmare! The employee who helped us was great. But delivery was not when promised and there was no apology for the major inconvenience. I've reached out to customer service to discuss but no response. Based on the delivery issues I would not buy from Mattress Firm again.
Date published: 2017-03-17
Rated 1 out of 5 by from Zero stars. Store is disgusting. Lady in store didn't know what she was talking about. Told me the store up the road has nicer beds and better selection. So i bought it at the Mattress Firm up the road across from Wawa.
Date published: 2017-03-26
Rated 5 out of 5 by from Excellent experience Today I purchased a queen Tulo medium at the store on Dekalb. Lucy worked with me. Both on the phone and in person she was very helpful, professional and quickly assisted me. I knew what I wanted and was led directly to the product. I’m pretty quick and to the point when purchasing. Lucy made me aware of what my options were but was sensitive to my style and budget.
Date published: 2018-05-17
Rated 5 out of 5 by from Better than I expected! I thought it was going to be a high-pressure sales experience, but it was actually quite relaxing and friendly. MJ got to know my wife and I while walking us through a variety of mattresses. She was great about letting us choose and not pushing towards a specific mattress that she wanted to sell. Thanks for the great customer experience and we’re loving our mattress!
Date published: 2018-02-27
Rated 5 out of 5 by from Nice place. No pushy salesmen. Great deals. Well what can I say... we never expected to find such a great deal for a beautiful King size mattress. David(Meyer) was kind enough to work within our budget patiently and help is find the right mattress. I have no complaints. He was patient for about 2 hours and worked well after store hours to find us the best possible deal. THANK YOU is all we can say.
Date published: 2017-06-05
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