Lull Waterproof Mattress Protector
Silent TPU protection. Soft knit feel. Machine washable.
Fits every Lull mattress.
Why Every Mattress Needs a Protector
A waterproof mattress protector shields your mattress from the three biggest threats to its lifespan.
Moisture Damage
Sweat, spills, and humidity work into foam over time, breaking down materials and creating conditions for mold and mildew. A waterproof layer stops this entirely.
Allergen Buildup
Mattresses accumulate dust mites, dead skin, and pet dander over time. A protector creates a washable barrier that's far easier to clean than the mattress itself.
Warranty Protection
Stains can void mattress warranties — including Lull's. A protector on from day one keeps your warranty intact and your mattress in claim-ready condition.
The Math on Protection
A $79 protector on a $1,000+ mattress isn’t an upsell. It’s math.
1.5M Dust Mites
An unprotected mattress can harbor up to 1.5 million dust mites within two years of use — feeding on dead skin cells and moisture. A protector creates a washable barrier between you and what accumulates inside.
26 gal Sweat Per Year
The average person deposits roughly 26 gallons of perspiration into their mattress annually. Over time, that moisture breaks down foam chemistry, encourages mold, and degrades the materials you paid for.
+3 yrs Extended Lifespan
A quality protector can add 3–5 years to a mattress’s functional lifespan by blocking the moisture and debris that degrade foam over time. On a $1,000 mattress, that’s real financial value.
70% Warranty Claims Cite Stains
An estimated 70% of mattress warranty claims are affected by staining. A protector on from day one keeps your Lull warranty valid and your mattress in claim-ready condition — for the full lifetime of your warranty.
Fitted. Silent. Invisible Under Your Sheets.
The Lull Waterproof Mattress Protector fits snugly over your mattress — quilted knit top, smooth fitted skirt, completely silent TPU barrier underneath.
What Makes Lull's Protector Different
Most protectors crinkle, trap heat, or feel like plastic. Lull's doesn't.
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Silent Waterproofing
TPU (thermoplastic polyurethane) membrane — waterproof and completely quiet. No crinkle. No plastic rustle. Just protection.
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Breathable Design
Unlike PVC-backed protectors, TPU allows air to move so you don't sleep hot. Surface fabric wicks moisture away from your body while the barrier keeps it away from your mattress.
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Soft, Fitted Feel
Soft knit top layer feels like a natural extension of your mattress. Deep-pocket skirt stays in place all night.
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Machine Washable
Remove, cold wash, tumble dry low. Clean in an hour, back on the bed in two.
Available Sizes
Fits all standard mattress sizes — including every Lull mattress.
Twin
38" × 75"
Twin XL
38" × 80"
Full
54" × 75"
Queen
60" × 80"
King
76" × 80"
California King
72" × 84"
Mattress Protector FAQ
Will a mattress protector change how my mattress feels?
A quality protector should have minimal impact on feel. Lull's TPU membrane protector is thin and flexible, so the memory foam contouring comes through naturally. Thick cotton-terry protectors can muffle foam responsiveness; ours doesn't.
How often should I wash my mattress protector?
Most sleep hygiene experts recommend washing every 2 months under normal use, or immediately after any spill. Because it's machine washable (cold wash, low dry), this is a quick routine to maintain.
Does a mattress protector help with allergies?
Yes. A protector creates a barrier between you and the allergens — dust mites, pet dander, pollen — that accumulate inside mattresses over time. Because the protector is washable, these allergens are removed regularly rather than building up.
What Our Customers Say
Verified reviews from Lull customers.
Protect Your Mattress. Sleep Clean.
Ships free. 100-night trial. Machine washable. The smartest thing you can add to your bed.
✓ Free Shipping · ✓ 100-Night Trial · ✓ Machine Washable · ✓ Fits Any Mattress
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