The Classic Brands Sleeptime Waterproof Futon Mattress wins overall for its CertiPUR-US certified foam and durable waterproof cover, while the Milliard Premium option offers best value with OEKO-TEX certification and strong owner approval.
Finding a waterproof outdoor futon mattress that balances comfort, durability, and weather resistance can be tough. We ranked the top models based on construction specs, certifications like CertiPUR-US and OEKO-TEX, and aggregated owner reviews to find the best options for your patio or sunroom.
Our picks cover various needs, from budget-friendly picks to plush options for side sleepers. Each model features a waterproof barrier to protect against spills and moisture, ensuring your futon stays fresh through changing seasons.
Classic Brands Sleeptime Waterproof Futon Mattress
Constructed with CertiPUR-US certified foam and a waterproof zippered cover. Owners report it holds up well in covered patios and resists mildew. The medium-firm feel suits most sleepers.
Check current priceHow we research and rank
We do not take payment for placement and we do not physically test products. Rankings come from manufacturer specifications, material certifications (CertiPUR-US foam, OEKO-TEX textiles), and the weight of aggregated verified owner reviews, analyzed for durability, heat retention and sagging. The scores in this guide are MattressVetted editorial research ratings — our assessment of the available evidence, not customer star averages. See how we rate.
How this guide was researched
- Final picks: 7 products, chosen from the models most searched and bought in this category.
- Evidence used: manufacturer specifications, independent certifications (CertiPUR-US foam, OEKO-TEX textiles), and aggregated verified-purchase owner reviews.
- Scoring weights: Construction 20%, Comfort 20%, Support 20%, Temperature 15%, Durability 10%, Motion and edge 5%, Trial and warranty 5%, Value 5%.
- Testing: we do not physically test products. Scores are our editorial research assessment, not a customer star average.
- Research reflects: July 2026.
Full method on our how we rate page.
The picks, compared
Classic Brands Sleeptime Waterproof Futon Mattress
Anyone needing a durable, certified waterproof futon for outdoor use. · Type: Foam | Firmness: Medium-Firm | Trial: 30 days
Constructed with CertiPUR-US certified foam and a waterproof zippered cover. Owners report it holds up well in covered patios and resists mildew. The medium-firm feel suits most sleepers.
What owners report: Owners consistently praise its waterproof performance and lack of odor. Some note it's heavier than expected.
- CertiPUR-US certified foam
- Waterproof cover zips off for cleaning
- Medium-firm support
- Heavy to move
- Cover may feel less breathable
Milliard Premium Futon Mattress
Budget-conscious buyers wanting OEKO-TEX certified waterproof protection. · Type: Foam | Firmness: Plush | Trial: 30 days
This Milliard model uses CertiPUR-US and OEKO-TEX certified foam with a waterproof liner. Owners love the value and the soft, plush feel. The cover is removable and machine-washable.
What owners report: Owners highlight the plush comfort and easy care. A few mention it may be too soft for those preferring firm support.
- CertiPUR-US & OEKO-TEX certified
- Machine-washable cover
- Great value
- Slightly soft for some
- May require flipping to maintain shape
Linenspa 6-Inch Futon Mattress
Shoppers on a tight budget needing basic waterproof functionality. · Type: Foam | Firmness: Medium | Trial: 30 days
An affordable 6-inch foam mattress with a waterproof polyester cover. Owners say it works well as a spare bed or in low-use outdoor settings. It's lightweight and easy to move.
What owners report: Owners appreciate the low price and waterproof layer. Some report it loses shape over time with frequent use.
- Very affordable
- Lightweight
- Waterproof cover
- Thinner, less support
- May sag with heavy use
Serta Perfect Sleeper Outdoor Futon Mattress
Those who prefer a firm sleeping surface and need sturdy support. · Type: Foam | Firmness: Firm | Trial: 30 days
This Serta model features high-density foam and a waterproof, stain-resistant cover. It offers a firmer feel that owners say holds up well on outdoor furniture. The cover is easy to wipe clean.
What owners report: Owners like the firm support and durability. Some find it too firm for side sleeping.
- Firm, supportive foam
- Stain-resistant waterproof cover
- Trusted brand
- Too firm for some
- Cover not removable
Pure Green 100% Natural Latex Futon Mattress
Hot sleepers wanting natural, breathable materials with waterproof layer. · Type: Latex | Firmness: Medium | Trial: 100 nights
Made with GOLS certified organic latex and a waterproof organic cotton cover. It stays cool due to latex's natural breathability. Owners report excellent durability despite higher price.
What owners report: Owners rave about cooling and eco-friendly materials. A few mention initial latex smell that dissipates.
- Natural latex breathes well
- GOLS certified organic
- Waterproof organic cotton cover
- Expensive
- Heavy
Molblly 6-Inch Futon Mattress
Side sleepers needing pressure relief on outdoor futons. · Type: Memory foam | Firmness: Medium-Soft | Trial: 30 days
Combines memory foam and support foam, CertiPUR-US certified, with a waterproof cover. Owners report good pressure relief for hips and shoulders. The medium-soft feel is plush yet supportive.
What owners report: Owners appreciate the plush comfort for side sleeping. Some note it sleeps warm.
- Pressure-relieving memory foam
- CertiPUR-US certified
- Affordable
- May retain heat
- Cover is not removable
DHP Cantilever Futon Mattress
Those wanting a coil support system with waterproof protection for outdoor use. · Type: Innerspring hybrid | Firmness: Medium | Trial: 30 days
Features innerspring coils topped with foam, wrapped in a waterproof fabric. Owners say it feels more like a traditional mattress and offers good edge support. The cover is waterproof and resistant to mildew.
What owners report: Owners like the classic innerspring feel and durability. Some report the waterproof layer may crinkle.
- Innerspring support
- Waterproof and mildew resistant
- Good edge support
- May have slight crinkle noise
- Heavier than foam models
Frequently asked questions
Can I leave a waterproof outdoor futon mattress in the rain?
While these mattresses have waterproof covers, prolonged exposure to rain can still cause moisture buildup underneath. It's best to bring them inside or use a protective cover when not in use.
Are waterproof outdoor futon mattresses breathable?
Most waterproof covers reduce breathability compared to non-waterproof models. Look for options with natural fibers or ventilation features, like the Pure Green latex model, to improve airflow.
How do I clean a waterproof futon mattress?
Spot clean with mild soap and water, or remove the cover if it's machine-washable (check label). Avoid harsh chemicals that may damage the waterproof layer.
Do these mattresses require a box spring?
No, most futon mattresses are designed to be placed directly on a frame or flat surface. Ensure proper support to prevent sagging.
Which certification should I look for?
CertiPUR-US and OEKO-TEX ensure foams are free from harmful chemicals and low in VOCs. GOLS is for organic latex. These certifications indicate safer materials, especially for outdoor use.
The verdict
The Classic Brands Sleeptime is our top pick for its reliable waterproofing and CertiPUR-US certification. For budget buyers, the Milliard Premium offers great value with similar certifications. Side sleepers will appreciate the pressure relief of the Molblly memory foam model.
