Spring Refresh: Save up to 25%
Spring Refresh: Save up to 25%
Spring Refresh: Save up to 25%

What Size Mattress Fits in a Thor RV?

What Size Mattress Fits in a Thor RV

THOR Motor Coach has been helping families explore the outdoors and spend time with each other for over 40 years. THOR has allowed travelers to embark on new journeys, try new things, and create unforgettable memories. THOR is an industry leader in RV innovation and continues to explore the future of RV living. THOR’s focus on innovation has allowed them to design some of the safest, most comfortable, and modern recreational vehicles that travelers could ever dream of. Along with THOR, SleepDog® also prioritizes comfort and innovation. This guide will explore some of SleepDog®’s favorite THOR RV’s and show you how you can add in your favorite SleepDog® mattress for the best sleep on the go.


The Windsport is a Class A drivable motorcoach. Begin your next adventure in a Windsport motorhome. This RV has several versatile layouts and additional amenities that will make traveling a piece of cake. The Windsport is so comfortable that you can use it for short trips or even live in it full time.

Features of the Windsport

  • Length: 30' 10" - 36' 10"
  • Height: 12' 2" - 12' 6"
  • Additional exterior storage: 64 cu. ft. - 140 cu. ft.
  • Sleep Capacity: 5 - 7

The Windsport comes equipped with a King size bed. The SleepDog® Mattress or the BigDawg Mattress™ in the RV King size are great options with their multi-layer memory foam to enhance your experience in this RV.


The Miramar is another Class A drivable motorcoach. This RV has all of the comfort and amenities you need in order to live your life on the road and feel right at home. This RV has a residential-style interior and comfortable furniture that allows you to have a luxurious travel experience. Some even say that staying in this RV is nicer than staying in a hotel.

Features of the Miramar

  • Length: 36' 0" - 39' 1"
  • Height: 12' 11"
  • Additional exterior storage: 137 cu. ft. - 216 cu. ft.
  • Sleep Capacity: 5 - 7

The Miramar comes fitted with a King size bed. Enhance this sleep space with either the SleepDog® Mattress or the BigDawg Mattress™ in the King RV mattress size. Both SleepDog® mattress models are Department of Transportation approved constructions and made from high quality CertiPUR-US® certified memory foam, providing a safer night sleep for you and your family.


The Inception is a Class C drivable motorhome. There is one word that describes the Inceptions RV perfectly – impressive. Every aspect of this RV was designed for comfort and enhanced capacity, which gives travelers the best experience possible on the road.

Features of the Inception

  • Length: 39' 10"
  • Height: 13' 3"
  • Additional exterior storage: 143 cu. ft. - 178 cu. ft.
  • Sleep Capacity: 4 - 6

Similar to the Miramar, the Inception also comes equipped with a King size. SleepDog® Mattress or the BigDawg Mattress™ in the King RV is a great fit for this RV. SleepDog® knows good sleep on the road is essential. That’s why having a good quality mattress that is comfortable is important for your on-the-go experience.

Outlaw Class A

The Outlaw Class A is also a drivable motorhome, but it is a toy hauler, which means that it has extra space to accommodate all of your outdoor toys. The outlaw is great for short-term or long-term trips and has all of the space that you could possibly need.

Features of the Outlaw

  • Length: 39' 10"
  • Height: 13' 3"
  • Additional exterior storage: 105 cu. ft. - 141 cu. ft.
  • Sleep Capacity: 7 - 8

The Outlaw has the largest sleep capacity of any of the RV’s that we have discussed. The Outlaw comes with either a King size bed or a Queen size bed, depending on the floor plan. Give your sleep space in the Outlaw a sleep upgrade with either the 7” multilayer medium-firm memory foam constructed SleepDog® mattress or the 9” plush multilayer memory foam, BigDawg Mattress™ in RV Queen or RV King sizes.

THOR does not cut any corners when it comes to making sure that their RV’s are comfortable and top of the line. Impressive exteriors, comfortable and luxurious interiors, and multiple layout options to ensure that you get exactly what you want. You can’t beat a THOR RV. The only way to enhance your experience in one of the THOR RV’s is to add a SleepDog® mattress. The SleepDog® mattress and the BigDawg Mattress™ come in many sizes and are compatible with the majority of THOR RV’s. SleepDog® wants to make sure that everyone gets a great night's sleep, both at home and on the road. If you have a THOR RV and you are interested in making your travel experience even better, contact our team today and we can help you find the perfect mattress.

BigDawg Mattress™ Product Image
BigDawg Mattress™
Our best-selling mattress made with a 9” plush, multilayer memory foam & pillow-top construction.
Starting at $524.25 $699
Shop Now
SleepDog® Mattress Product Image
SleepDog® Mattress
7” multilayer memory foam construction infused with CoolRest® technology for maximum comfort & support.
Starting at $434.25 $579
Shop Now