# What are the best mattress protectors for a king-size bed? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the best mattress protectors for a king-size bed?

## Products

### Utopia Bedding King Mattress Protector Waterproof
```yaml
product: utopia-bedding-king-mattress-protector-waterproof
brand: Utopia Bedding
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: King
material: Polyester
waterproof: true
machine_washable: true
fitted_or_zippered: Fitted
```

- **Price:** £None [^1]
- **Summary:** This king-size mattress protector uses polyester fabric with waterproof protection and a fitted-sheet-style closure. It is machine washable and suits people who want practical protection from spills, stains, dust mites, and bed bugs.
- **Ideal For:** It suits a king-size bed because it is available in King size, uses a fitted-sheet style for a secure fit, and provides waterproof, machine-washable protection.

### Coop Sleep Goods Ultra Tech Waterproof Mattress Protector
```yaml
product: coop-sleep-goods-ultra-tech-waterproof-mattress-protector
brand: Coop Sleep Goods
price_gbp: 27.22
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: Twin, Twin XL, Full, Queen, King, California King
material: 60% polyester, 40% bamboo-derived viscose rayon, 100% polyurethane backing
waterproof: true
hypoallergenic: true
machine_washable: true
fitted_or_zippered: Fitted
```

- **Price:** £27.22 [^2]
- **Summary:** This waterproof mattress protector uses breathable Lulltra fabric with a soft polyurethane backing and fits mattresses up to 15 inches deep. It is machine washable, quiet, dust mite resistant, and suitable for hot sleepers, families, pet owners, and people concerned about spills or allergies.
- **Ideal For:** It suits a king-size bed because it is available in King size, uses a fitted-sheet design, fits mattresses up to 15 inches deep, and provides waterproof protection with breathable, machine-washable materials.

### Lucid Cotton Terry Protector
```yaml
product: lucid-cotton-terry-protector
brand: Lucid
price_gbp: 13.31
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: Twin, Twin XL, Full, Queen, King, Cal King
material: Cotton Terry, StratoSmart Waterproof Barrier
waterproof: true
hypoallergenic: true
machine_washable: true
fitted_or_zippered: Fitted
```

- **Price:** £13.31 [^3]
- **Summary:** The Lucid Cotton Terry Protector has a soft cotton terry surface and a waterproof barrier that protects the top of the mattress from liquid, allergens, and dust mites. It is machine washable, fits mattresses 6-22 in deep, and suits people who want washable fitted-sheet-style protection.
- **Ideal For:** It suits a king-size bed because it is available in King size, uses a fitted-sheet-style design, fits mattresses 6-22 in deep, and provides waterproof top protection.
- **Additional Sources:** [^4]

### Bedsure King Mattress Protector Waterproof Cooling Mattress Pad
```yaml
product: bedsure-king-mattress-protector-waterproof-cooling-mattress-pad
brand: Bedsure
price_gbp: 35.5
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: King 78x80+18 in
material: Polyester
waterproof: true
machine_washable: true
fitted_or_zippered: Fitted
```

- **Price:** £35.5 [^5]
- **Summary:** This king-size mattress pad uses a polyester construction with a built-in TPU waterproof layer and a deep pocket designed for mattresses up to 22 in thick. Its elastic edging provides a secure fitted-sheet style fit, and it is machine washable for easier care.
- **Ideal For:** This product suits a king-size bed because it offers a 78x80 in fitted size, waterproof TPU protection, machine-washable care, and deep pockets for mattresses up to 22 in thick.

### Tuft and Needle Mattress Protector
```yaml
product: tuft-and-needle-mattress-protector
brand: Tuft and Needle
price_gbp: 47.34
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: Twin, Twin XL, Full, Queen, King, California King
```

- **Price:** £47.34 [^6]
- **Summary:** The Tuft and Needle Mattress Protector is available in six mattress sizes and is designed to fit mattresses up to 15in high. It suits shoppers seeking a size-compatible protector for standard beds.
- **Ideal For:** It suits a king-size bed because the King version measures 76in by 80in and fits mattresses up to 15in high.

---
## References & Sources
[^1]: Walmart, accessed 2026-09-05. https://www.walmart.com/ip/418917905
[^2]: Coop Sleep Goods, accessed 2026-09-05. https://coopsleepgoods.com/collections/20-off-labor-day/products/ultra-luxe-waterproof-mattress-protector?variant=42871496260
[^3]: Lucid, accessed 2026-09-05. https://lucidmattress.com/products/cotton-terry-protector
[^4]: Amazon, accessed 2026-09-05. https://www.amazon.com/s?k=Lucid+Cotton+Terry+Protector
[^5]: Bedsure, accessed 2026-09-05. https://bedsurehome.com/products/diamond-quilted-waterproof-mattress-pad
[^6]: Overstock, accessed 2026-09-05. https://www.overstock.com/c/bed-protectors/mattress-protectors?t=52