Mattress Insider logo

Mattress Insider

Littleton, CO

4.8(170 reviews)
8 active offers2 store perks
DLX Mattress advertisement. Buy direct from the mattress maker and save $500.

Advertisement

About Mattress Insider

Mattress Insider specializes in custom mattresses for various applications, including RVs, boats, and sofa beds. They offer free shipping within the US and a 365-night guarantee. Their product range includes custom mattresses, mattress toppers, and bedding & linens.

Current Promotions
Last updated Aug 5, 2025

Current promotions at Mattress Insider include various percentage and dollar-off discounts on select products, as well as sitewide offers with specific coupon codes. Some promotions have expiration dates, while others are ongoing. For the most accurate and up-to-date information, it's recommended to check the official website.

  • 11% off sitewide with coupon code NIGHTOWL, valid between 10PM and 5AM Mountain Time.Expires: OngoingValid only between 10PM and 5AM Mountain Time.
  • 12% off with coupon code JULY4TH, celebrating Independence Day. Ends 07/09.Expires: 2025-07-09Valid until July 9, 2025.
  • 10% off with coupon code BYEBYE24, part of the Year End Sale. Ends 01/02.Expires: 2026-01-02Valid until January 2, 2026.
  • $100 off at checkout on 8” Luxury Gel Foam Mattress.Expires: OngoingDiscount applied at checkout.
  • $100 off at checkout on 8″ Park Meadow Pocketed Coil Mattress.Expires: OngoingDiscount applied at checkout.
  • $50 off at checkout on Deluxe Sofa Mattress.Expires: OngoingDiscount applied at checkout.
  • $50 off at checkout on Latex Sofa Mattress.Expires: OngoingDiscount applied at checkout.
  • 5% off all orders over $500 with coupon code 500FOR5.Expires: OngoingMinimum order of $500 required.
Purchase Incentives
  • Free US Shipping
  • 365 Night Guarantee
Mattress Selection

Brands

not provided

Ideal for

All sleepers

Technology

not provided

Assortment

Custom Mattresses
RV Mattresses
Sofa Bed Mattresses
Van Mattresses
Truck Mattresses
Boat Mattresses
Mattress Toppers
Bedding & Linens

Price range

$
$$
$$$
$$$$

Price range not yet reported

What Your Neighbors Say

Real Google reviews from nearby shoppers

See all reviews

Average rating 4.8 · 170 reviews

Last updated Aug 27, 2026

Ba Man· 1★ · 2026-07-18T17:33:52.159281852Z

Invoice for order 498727 Order Date: June 26, 2026 . We selected 14 linear feet from the drop down which doubled our price. Also pretty shady that the customer invoice does not show the linear feet selected, convenient for you. Paid for 14 Linear Feet but Received Only 10.83 Feet of Padded Material We ordered this product for a custom mattress area measuring 57 × 80 inches. We selected 14 linear feet because we needed enough material to cover the entire length of the mattress. Selecting 14 feet caused the price in our cart to nearly double, so we reasonably believed we were paying a premium to receive the full amount of usable coverage we ordered. What arrived were two padded sections measuring approximately 38 × 65 inches each. That equals only 130 combined linear inches, or 10.83 linear feet of actual padded material—not the 14 linear feet we paid for. That is a difference of 38 inches, or more than 3 linear feet. To properly cover an 80-inch-long mattress, the two sections should have been approximately 38.5 × 80 inches each. Two 80-inch sections would total 160 linear inches, which is still within the 168 linear inches represented by a 14-foot order. When we contacted customer support, we were told that the attached fabric “flaps” were supposedly included in the measurements and that we should turn the sections sideways. Those flaps are only thin cloth, not the padded product we believed we were purchasing. Turning the pieces sideways also leaves us without padded coverage along the full 80-inch length of our mattress. The product description and ordering system were misleading, and customer service refused to acknowledge the shortage of usable padded material. Based on our experience, I cannot recommend this company. Carefully verify exactly how they calculate “linear feet” before ordering, because you may receive substantially less usable product than expected.

View on Google
Bud· 5★ · 2026-04-25T19:44:49.829013951Z

We had a custom mattress made and it is outstanding. Great quality and shipped quick! Mattress Insider was easy to talk to and were able to make my custom size. The CEO of the company called me twice, 1st thanking me for my order and again to tell me the mattress had ship. If you need a mattress for your RV, I highly recommend Mattress Insider! Thank you Guys!!!

View on Google
Fyn FynSidian· 5★ · 2025-07-04T22:47:54.334129586Z

We inherited a 200+ yr old 3/4 full rope bed that was my wife's great great great great grandparents (family has been here pre-revolutionary war) many decades ago it was converted from a rope bed to be used with a box spring and mattress. We had a box made and Mattress Insider advised to go with the 9 inch inner spring mattress. It arrived within 2 weeks, perfect condition, and perfect fit. We could not be happier.

View on Google
Lloyd Hemenway· 5★ · 2026-06-05T22:17:19.629591993Z

I have ordered online and the ease of ordering was incredible to say the least. The quality of the product is as good or better than anything on the market. Customer service Katherine can't say enough good things about her and employees are a direct reflection of the overall business. That being said I am a customer for life.

View on Google
Paul Carroll· 5★ · 2026-02-09T16:59:13.536699518Z

I own a pullout bed from This End Up that we purchased in1992. Finding a mattress was challenging, given the size specifications until I fell upon Mattress Insider. Delivery was better then expected due to the harsh weather throughout the east coast. When I contacted customer service about my mattress, they were so pleasant and professional! A quick shout out to the CEO of the company. He left messages on my phone to let me know he appreciated the order and he would be available to ask any questions I have. Now that is customer service at a high level! I purchased the The Elation Mattress - 64" x 72 so my 83 year old mother could sleep better. She is so thankful and ecstatic about the level of comfort and sleep she now enjoys. Great product, great leadership, and a great company. I highly recommend them!!

View on Google
Other mattress stores in Littleton

See all mattress stores in Littleton, CO