The Stratosphere measures a true 6" thick, but is made with more layers of higher-quality foam and polyester than most other manufacturers' 8", 9", or even 10" futon mattresses. It's ideal for lower-profile futon frames, for those who want to sit a little lower, or for anyone who operates their frame every day and night — it's easier to bend and fold than other Otis models or any other high-quality futon mattress.
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Key Characteristics
- Comfort Level: Supportive and soft
- Durability: 10 years
- Thickness: True 6" boxed edge (approx. 12" of compressed ingredients)
- Weight: Approx. 45 lbs (Full size) — light and easy to lift and move
- Popularity: #3 Best Seller
- Recommended Use: Sofa or bed
- Frame Compatibility: Tri-fold, bi-fold, or platform bed
- Grip Strips: Super Grip Strips or Super Grip Rolls always highly recommended
- Overcover: Standard covers fit the Stratosphere — no oversized cover needed
- Price Tier: Lower price, yet high quality
Available Sizes
- Chair: 28 x 54
- Ottoman: 28 x 21
- Twin Chair: 39 x 54
- Twin Chair & Ottoman: 39 x 54 and 39 x 21
- Twin: 39 x 75
- Full: 54 x 75
- Full Love: 54 x 54
- Full Love & Ottoman: 54 x 54 and 54 x 21
- Queen: 60 x 80
- Queen Love: 60 x 54
- Queen Love & Ottoman: 60 x 54 and 60 x 26
- Eastern King: 78 x 80
- California King: 72 x 84
Stratosphere Cushioning System
All Otis mattresses are made from 100% woven polyester fabric.
- Woven Polyester Shell – Durable outer ticking that holds tuft tension
- 7" High-Density Foam Layer – Minimum 2.0 lb density foam for lasting shape and feel
- Dense Polyester Layer – Creates a clean finished appearance
- Machine Tufting – Properly tensions cover and filling materials
- Tape Edge Closure – Ensures proper fit and finish
Otis Construction Standards
- Bench Built: Hand-crafted for uniform quality control
- Boxed Edges: Clean, tailored mattress or sofa look
- Overstuffed Core: Finished size is 6", made with approx. 12" of resilient foam and fiber compressed for long-term support
- Tape Edge Closure: Reinforced edge construction for durability and shape retention
- Compression Lace Tufting: Button-less tufting system that compresses and stabilizes internal materials for lasting performance
Comfort & Durability Philosophy
Otis mattresses are engineered to be as comfortable as they are durable. The goal is to provide sofa-level comfort while maintaining flexibility and pressure relief for occasional or nightly sleeping.
Unlike cotton-based futons, Otis uses highly resilient high-density foam. Foam retains its shape and feel through repeated compression, while cotton batting becomes thinner and harder wherever it's regularly compressed, since its fibers have nothing to draw them back to their original position once weight is removed.
Do not judge a mattress by thickness alone. Interior material quality determines longevity, comfort, and long-term shape retention.
Important Notes on Thickness & Quality
Thickness is a relative term in the mattress industry. Most manufacturers build a mattress with roughly the same amount of material as its stated thickness, which then flattens unevenly to about half that size over time. Otis builds with far more material than the finished size — a 6" mattress is made with about 12" of ingredients, and an 8" mattress with 14" or more. That's the reasoning behind the Otis manufacturing process, and it's why the advertised finished thickness holds up far longer than other mattresses — it's as if Otis mattresses arrive pre-broken-in.
Grip Strips Recommendation
Super Grip Strips or Super Grip Rolls are always highly recommended for the Stratosphere to keep the mattress properly positioned and functioning as intended.
Special Note for Tri-Fold and A-Frame Use
When used on a tri-fold or A-Frame, the Stratosphere will not simply droop over the back of the frame like a low-quality futon mattress. Super Grip Strips or Super Grip Rolls will need to be attached to the frame, along with a mattress strap to hold the portion that folds over the back of the frame in place. Once broken in through regular use, it becomes easier to manipulate — and in the long run, it will last longer and stay more comfortable than any other futon mattress available for these frame types.
Cover & Thickness Guidelines
Standard futon covers fit the Stratosphere Futon Mattress.
The mattress is the most used component of any futon. Invest in quality materials that maintain comfort and structural integrity over time.
Shipping & Delivery Times
Orders normally leave the Otis factory within 1 to 2 business days, then take additional time in transit depending on your location. Delays can occur due to weather, carrier issues, logistics, or availability — please order accordingly and allow extra time in case of any issue.
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