PLANETOID Quilted Waterproof Mattress Protector Double with Extra Deep Fitted Sheet (137 x 190 x 40 cm)
Product description
What it is and what problem it solves
This PLANETOID twin-style protector is a quilted, 100% waterproof cover designed for a double mattress. Sized at 137 x 190 cm with a deep fitted depth of around 40 cm, it aims to shield the mattress from fluids, accidents and general wear, while offering a soft, breathable layer on top. If you’re looking to reduce spills, stains or incontinence concerns without compromising on comfort, this protector presents a pragmatic option.
How it feels in use

On the bed, the protector behaves like a fitted sheet with a full elastic surround, so it tends to stay in place through the night. The quilted upper layer gives a cushioned feel, and the breathable membrane beneath helps keep you from getting too warm or clammy. It’s designed to be worn through multiple washes without the waterproof layer losing its shape, which is a practical advantage for households with kids or pets.
What stands out


For many, the key appeal is the combination of waterproof protection and a soft, hypoallergenic finish. The material is described as anti-bacterial with a breathability focus, which can help with dust-mmites and general comfort. The deep-fit design suits thicker mattresses up to 40 cm, which reduces the chance of the sheet slipping off and fiddling with corners in the middle of the night.

Possible limitations
On the downside, the claim of 100% waterproofing is dependent on the integrity of the membrane after repeated washes. While the product advertises machine washability and a non-distortive elastic, some users may still notice a subtle change in feel after many cycles. It’s also a general purpose protector, so if you require high-end thermal regulation or airtight waterproofing, this may not satisfy those specific needs.
Ideal for

- Households with children or pets, where spills and accidents are more likely.
- People needing additional cover during travel or when moving, to protect a mattress temporarily.
- Anyone seeking an anti-allergy, hypoallergenic option that is easy to wash and maintain.


When it might not be the best fit
- If you need a premium mattress topper with a strong emphasis on temperature control or luxury feel, you might prefer alternatives that prioritise those features.
- If the mattress is thicker or denser than around 40 cm, the fit may become a little snug or require extra attention during installation.

What to check before buying
- Confirm your mattress height is up to 40 cm to ensure a snug fit.
- Consider washing logistics: this protector is machine washable, but avoid bleaching and hot drying that could affect the membrane over time.
- If you have very sensitive skin or specific allergies, review the hypoallergenic claim and consider washing routine to maintain the claimed benefits.
Practical usage example



Imagine a busy family morning: the kids have a spill and you can pull off the bed protector, pop it in the wash, and toss it back on with minimal disruption. The deep-fit helps it stay put on a variety of mattresses, so you don’t have to chase the corners every night.
Quick comparison mindset
Compared with standard non-waterproof covers, this PLANETOID option adds a quilted layer for comfort and a dedicated waterproof membrane. If you prioritise protection with a soft top and easy maintenance, it’s a sensible middle-ground choice rather than a specialist waterproofing product.

FAQ (where data allows)
- Is it suitable for machine washing? Yes, it’s described as machine-washable.
- Does it fit deep mattresses? It’s designed for depths up to 40 cm.
- Is it hypoallergenic? Yes, it mentions anti-bacterial and hypoallergenic properties.
Is it worth it?
A solid pick if you want practical, all-round protection for a double mattress with a deep fit, plus a soft, quilted feel and easy care. It may not be the best choice if you seek premium temperature regulation or absolute moulded waterproofing, but for everyday protection and straightforward maintenance, it offers clear value.
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