Try an oversized mattress before you buy!
Talk to one of our mattress experts to book a private appointment
Our showroom features our premium oversized mattress in the Alaskan King bed size. We also offer our oversized mattress in other popular sizes, including the Texas King, Wyoming King, Alberta King, and Family Bed!
Made for YOU!
Our showroom visits are by appointment only (no walk-ins!). Contact one of our friendly mattress experts to schedule your visit and help answer any questions you may have.
Meet one of our mattress experts at our showroom at your scheduling time. Bring the family if you want! You’ll have plenty of time to try the mattress and determine if it is right for you. We’re confident that you’ll love it!
Your giant mattress will be shipped directly to your door (contiguous US only). The mattress will be compressed and rolled, ensuring an easy setup! Just in time for movie night!
Total Height: 13.5″
Comfort Layer (top):
Support Layer (base):
Adjust the Feel of the Mattress in Minutes
Most oversized mattresses have just one firmness option. If the mattress arrives and you do not like the feel, you’re stuck with a huge bed you don’t like. We’ve solved this problem by providing you with a mattress that lets you adjust the feel to your liking by flipping or removing mattress layers!
Sleep at the Ideal Temperature
The top layer of your mattress consists of 2” of cooling gel memory foam plus 2” of temperature neutral Talalay latex. Both of these layers are encased in an organic cotton cover to provide you with the perfect blend of materials, which help to regulate body temperature.
CertiPUR Certified
Rest assured your mattress is built by hand right here in the US using only the highest quality materials.
No Shifting of the Layers
Thanks to our patent pending “Zip in Place” system, the top layer zips to the bottom layer, keeping everything from shifting over time.
Lasts Twice as Long
Other oversized mattress retailers use cheap foam to make up the base support layer. The base of your oversized mattress will be made with individually pocketed coils, which outperform foam when it comes to support and durability.
Supports up to 50% More Body Weight
Individually pocketed coils can support individuals weighing up to 300 lbs. Foam supports less weight and tends to wear out faster, causing sagging and impressions overtime.
Our showroom is located at:
5912 S Cody St #101
Littleton, CO 80123
At your scheduled time, one of our mattress experts will meet you at our showroom and help answer any questions you may have. Once you have the mattress picked out, we will assist you with placing your order. The total production and delivery time for oversized mattresses is currently 4-6 weeks.
Here are a few of the most common mattress types you have access to:
COLORADO SHOWROOM ADDRESS: 5912 S Cody St, Littleton, CO 80123 [ Schedule a Showroom Visit ] 888-488-1468
Copyright © 2025 MattressInsider, LLC. All rights reserved.
Adventure RV Mattress by Mattress Insider is not affiliated with, endorsed by, or sponsored by any company or entity owning rights to the trademark “Adventure Mattress.” All trademarks and brand names are the property of their respective owners.