King Mattress Protector

Free Old Mattress
Removal & Disposal

Sleepy’s 60-Night
Comfort Exchange Guarantee

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Discover the Power of a Better Night's Sleep

Mattress protector chat sending you to sleep? Well, wake up and smell the coffee spill—everyone's mattress needs protection. A king-size mattress protector doesn’t just sit there being dull; it holds the line: blocking sweat before it seeps in, stains before they set, and dust mites before they crash the slumber party. Waterproof, hypoallergenic, quilted, fitted, whatever your sleep life throws at you, Sleepy’s has you (and your mattress) covered.

Why Buy a Queen Mattress Protector from Sleepy’s?

Because life doesn't stop when you go to sleep, and neither do the spills, sweat, or pet paws. At Sleepy’s, we not only stock king mattress protectors that actually show up. We handpick the ones that blend real protection with real comfort. No stiff fabrics. No noisy layers. Just smart, Aussie-made, sleep-loving designs that your bed (and skin) will thank you for.

We’ve done the sleep science, bed testing, and product vetting so you can protect your mattress like a bed boss. Buy a king-size mattress protector online from the comfort of your couch, or if you like the idea of real-life demos and mattress banter, chat with us in-store.

How to Choose the Right King Mattress Protector

Need spill-proofing? A waterproof mattress protector for a king bed is your go-to. It handles spills, sweat, and bedtime smoothies.

Sensitive sleeper? Hypoallergenic or fully encased options keep dust, dander, and critters out.

Sleep hot? Opt for breathable cotton, bamboo, or cooling-tech fabrics.

Prefer plush? Quilted designs add extra comfort while protecting.

Check the depth: King mattresses (especially pillowtops) can run deep. Make sure your protector fits snugly.


Shop by Feature / Collection


  • Waterproof Protectors: Handles spills, sweat, and mid-movie snack disasters.
  • Hypoallergenic Protectors: Created for sensitive sleepers and clean-conscious households, these keep dust mites and micro irritants at bay.
  • Quilted/Extra Comfort Protectors: Adds a cloud-like layer of comfort you didn’t know you needed.
  • Encasing or Fitted Protectors: Choose sleek and stretchy fitted protectors or seal the whole mattress in total 360° encasing protection.


Frequently Asked Questions
 

What is a mattress protector and why do I need one?

Think of a king-size mattress protector as insurance for your mattress. It shields your mattress from sweat, spills, dust and allergens, giving you a cleaner, longer-lasting sleep surface, saving you from stains and the mattress cleaning matrix.

Can I use a mattress protector with my existing king mattress?

You can. Just make sure it's the right size and depth. A king bed mattress cover is designed to fit standard-sized mattresses, whether you’re sleeping on memory foam, hybrid, latex, or spring.

How do I choose the right fit for my mattress?

Measure your mattress height (especially if you have a pillowtop, extra plush feel or deep-style mattress to ensure a snug fit. Choose the king bed mattress protector for your king-size mattress.

Are Sleepy’s king mattress protectors waterproof?

Some are fully waterproof for maximum spill-stopping power, while others focus more on breathability and comfort. Pick your level of defence based on how life happens in your bed (kids, pets, beverages).

How do I care for and clean my mattress protector?

Most are machine washable. Check the label for final approval, and you’re good to go. Wash it every 1–2 months or more often if you’re the breakfast-in-bed type.

Will a mattress protector affect the feel of my mattress?

A good king-size mattress protector will only affect the feel of your mattress in good ways. Quality mattress protectors (like the ones you’ll find at Sleepy’s) are soft, silent and slim, going about the business of keeping your mattress ship-shape and shiny.

Frequently Asked Questions

How Long Until My Order Is Delivered?
Our mattresses are Australian made and when you order online, chances are they are yet to be made by our Australian manufacturers! Due to the nature of bulky goods and potential construction time, delivery times will vary depending on the product and availability. If you’re purchasing in-store, we will advise you of an estimated delivery time, at the time of purchase. If you’re purchasing online, a local Sleepy’s consultant will be in touch to confirm a delivery date. Mattress and standard bases could take up to 7-10 business days. Customised drawer bases and bedheads between 15 and 21 business days.
What Happens Once I Place an Order?
Online – once your order has been received and payment confirmed, one of our consultants will make contact with you. This may be in the form of email or telephone. Please check your “junk” mail after your order has been placed just in case our email ends up there by mistake! The consultant in store will let you know they have received your order and will make arrangements to have your new mattress made for you. They will also provide you with regular updates as required to advise delivery details and time lines. This could be through email, SMS or telephone, you get to select which method suits your lifestyle. In Store – our consultants will provide you with information on delivery time lines at the time of your purchase. If they need to order the product from our suppliers they can provide you with regular updates as required. This could be through email, SMS or telephone, the choice is yours, just let your consultant know at the time of purchase.
Is Old Mattress Removal Available?
Yes, Sleepy’s offer free mattress removal at no extra cost. When we deliver your new mattress, for both in store and online mattress purchases, our team will remove your old mattress at no charge! We do reserve the right in some cases, where the health and hygiene of our staff or contractors may be at risk, to negotiate an alternate arrangement for disposing of your mattress. During COVID-19, changes may apply to delivery schedules and free old mattress removals at this time. If you are purchasing online, we will confirm your delivery before processing your order. If you are making your purchase in one of our Sleepy’s showrooms, our teams in store will advise you of the current delivery protocols. Sleepy’s use independent contractors for delivery services to our customers and during this time we want to support these small business owners and our customers to ensure safety for all. Please note, bases and other bedroom furniture are not part of our Free Old Matt Removal offer. This service is available in some stores at an additional charge. Please contact your closest Sleepy’s store for more information.
Will I Receive Advance Notice Before Delivery?
Yes, you will be contacted prior to delivery via SMS, email or phone call.
What Do I Need to Know Prior to My Order Being Delivered?
If Sleepy’s are delivering a new mattress (and/or base) to your home, we will contact you beforehand to provide guidelines to help arrange a smooth transition. As these products are large and heavy, it is recommended fragile, valuable and cherished possessions are tucked away and a clear pathway to the room be created.
Can I Change or Cancel My Order After I Have Placed it Online or In-Store?
Cancellation of orders will attract an administration fee equal to 20% of the total value of goods if your order has been placed with the manufacturer. You are not entitled to a refund if you simply change your mind. Order changes can be managed through the store. We always want to provide you with the most suitable outcome possible and will work with you to achieve this. Sleepy’s offer 60 Night Comfort Exchange on the occasion that your mattress isn’t quite right.
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Frequently Asked Questions

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