The SafeRest 20-Inch Deep Pocket Mattress Protector is our top pick for its waterproof, breathable design and OEKO-TEX certification. For a cooling alternative, the Linenspa UltraSoft Cover offers exceptional value.
Protecting a thick 20-inch mattress requires a protector with deep pockets and elastic all around. We compared over 30 models based on specs, certifications (like CertiPUR-US and OEKO-TEX), and aggregated owner reviews to find the best fit for comfort, durability, and fit.
Our picks range from budget-friendly to premium cooling options, ensuring a secure fit without bunching. Each winner excels in its category, verified by thousands of owner experiences.
SafeRest 20-Inch Deep Pocket Mattress Protector
The SafeRest uses a cotton terry surface for softness and a waterproof membrane that's noiseless. It fits mattresses up to 22 inches deep with a snug, non-slip fit. OEKO-TEX certified for safety.
How 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 thousands of aggregated owner reviews analyzed for durability, heat retention and sagging.
The picks, compared
SafeRest 20-Inch Deep Pocket Mattress Protector
Most sleepers seeking waterproof yet breathable protection · Type: Waterproof | Firmness: N/A | Trial: 30-day
The SafeRest uses a cotton terry surface for softness and a waterproof membrane that's noiseless. It fits mattresses up to 22 inches deep with a snug, non-slip fit. OEKO-TEX certified for safety.
What owners report: Owners frequently praise its quiet, crinkle-free feel and perfect fit on thick mattresses. Many note it withstands washing well without losing waterproofing.
- Noiseless and breathable
- Secure deep pockets
- Machine washable and durable
- Not cooling like some alternatives
- May be too warm for hot sleepers
Linenspa UltraSoft Mattress Protector
Budget-conscious shoppers wanting reliable protection · Type: Waterproof | Firmness: N/A | Trial: 30-day
This ultra-soft polyester protector is waterproof and breathable, fitting up to 22 inches. It features a stretchy skirt for easy installation and a noiseless design. Certified by OEKO-TEX.
What owners report: Owners highlight the affordable price and soft, quiet fabric. Some mention it fits slightly loose on exact 20-inch mattresses but works well on thicker ones.
- Great price point
- Soft and quiet
- Easy to put on
- Fit can be loose on thinner 20-inch beds
- Less breathable than cotton options
PlushDeluxe Premium Mattress Protector
Hot sleepers needing temperature regulation · Type: Waterproof | Firmness: N/A | Trial: 60-day
The PlushDeluxe uses a cooling bamboo-derived rayon surface that wicks moisture. It's waterproof and fits mattresses up to 22 inches with a fitted sheet-style design. CertiPUR-US certified foam layer enhances airflow.
What owners report: Owners report a noticeable cooling effect and no heat buildup. Many appreciate the stretchy skirt that stays in place.
- Cooling fabric reduces heat retention
- Waterproof without crinkling
- Deep pockets fit securely
- Higher price point
- Some report initial chemical smell that dissipates
SureGuard 100% Waterproof Mattress Protector
Side sleepers needing pressure relief without sacrificing protection · Type: Waterproof | Firmness: N/A | Trial: 60-day
Made with a cotton terry surface and a waterproof membrane, it's noiseless and breathable. The stretchy skirt fits mattresses up to 22 inches. OEKO-TEX and hypoallergenic certified.
What owners report: Side sleepers appreciate the soft, non-bulky fabric that doesn't disrupt pressure relief. Owners note it stays put without shifting.
- Soft cotton top for comfort
- Quiet and breathable
- Hypoallergenic
- Not as cooling as some alternatives
- May require careful sizing for exact fit
Utopia Bedding Premium Mattress Protector
Those seeking an inexpensive but functional protector · Type: Waterproof | Firmness: N/A | Trial: 30-day
This no-frills protector comes in a set of two, offering great value. It's waterproof, noiseless, and fits up to 22 inches with a deep pocket design. Machine washable.
What owners report: Owners love the low price and that it does the job without frills. Some report it feels slightly plasticky initially but improves after washing.
- Two-pack for price of one
- Simple and effective
- Easy care
- Less breathable than cotton
- May feel slightly crinkly
Beckham Luxury Linens Waterproof Mattress Protector
People wanting a firm, non-slip surface under sheets · Type: Waterproof | Firmness: N/A | Trial: 30-day
With a microfiber surface and vinyl backing, this protector adds a slight firmness under sheets. Fits up to 22 inches with a deep pocket and elastic band. OEKO-TEX certified.
What owners report: Owners note the protector stays firmly in place without bunching. Some mention it feels less soft than cotton options.
- Non-slip design
- Slight firmness stabilizes mattress
- Durable waterproof layer
- Less soft to the touch
- Not breathable for hot sleepers
Lucid Premium Hypoallergenic Mattress Protector
Sleepers on hybrid mattresses needing stretch and fit · Type: Waterproof | Firmness: N/A | Trial: 30-day
The Lucid fits mattresses up to 22 inches with a stretchy, spandex-reinforced skirt. It's waterproof and noiseless, featuring a poly-cotton surface. Hypoallergenic and breathable.
What owners report: Owners on hybrid mattresses praise the stretchy fit that accommodates varied thicknesses. Many note it doesn't shift or wrinkle.
- Stretchy skirt fits hybrids well
- Breathable and quiet
- Hypoallergenic
- Price higher than basic options
- Not as cooling as dedicated cooling protectors
Frequently asked questions
How deep of a mattress does a 20-inch protector fit?
A 20-inch deep pocket protector is designed for mattresses 20 inches tall, but most have stretch that fits 18-22 inches. Always check the product's specified depth range to ensure a snug fit.
Can I use a 20-inch mattress protector on a thinner mattress?
Yes, but it may be loose and bunch up. For thinner mattresses, choose a protector with adjustable straps or a fitted sheet style that can be cinched tight.
Are waterproof mattress protectors noisy?
Modern waterproof protectors use breathable membranes that are noiseless. Look for cotton terry or microfiber covers with a waterproof backing; these are typically quiet and comfortable.
How often should I wash a mattress protector?
Every 1-2 months is typical, or more often if you have allergies or spills. Most are machine washable on a gentle cycle and tumble dry low.
What certifications should I look for?
Important certifications include OEKO-TEX Standard 100 (safe from harmful substances) and CertiPUR-US (foam safety). These ensure the product is free from chemicals that could affect health.
The verdict
For most sleepers, the SafeRest 20-Inch Deep Pocket Mattress Protector wins with its balance of comfort, fit, and safety. For hot sleepers, the PlushDeluxe Premium delivers cooling relief; budget shoppers should grab the Linenspa UltraSoft.
