Your order helps us plant trees
150,270+ Trees planted so far
Combining Sealy's innovative, comfort-enhancing PostureTech CS System with a layer of adaptable MemorySense Foam, the Sealy Advantage Quartz Mattress ensures a wonderful night's sleep. Boasting total support across the entire surface area, the mattress also benefits from the company's excellent EdgeGuard technology, which reinforces each of the springs with a layer of high-density foam. This lengthens the expected lifespan of the product and extends the support it provides all the way to the edges of the mattress.
Hand-crafted in Sealy's Cumbria-based workshops, the Sealy Advantage Quartz Mattress offers guaranteed quality. A great deal of expertise goes into every stitch, and the experience of the artisans who manufacture the mattresses is apparent in every product.
At the heart of the Advantage Quartz Mattress is the world-class PostureTech CS spring system. This technology is designed to respond effectively to subtle shifts in body weight, position and pressure, allowing it to offer ever-changing support that reacts to your movements throughout the night. By localising support, PostureTech prevents roll-together and ensures that tossing and turning on one side of the bed is not felt on the other.
MemorySense Foam adapts to your body position, cocooning you in absolute comfort and helping you to stay asleep for longer. By moulding to your sleep shape, it targets support to your biggest pressure points, preventing aches and pains in the morning. As the technology responds to your body heat, the mattress naturally returns its former shape once pressure is relieved. However, over time, it will "remember" your most comfortable position, retain its shape and encourage your body to adopt it.
All Sealy mattresses are shipped with a fantastic five-year guarantee. However, Sealy also adopts several measures to ensure that your mattress is durable, long-lasting and represents good value for money. For instance, EdgeGuard technology is incorporated into every spring. This high-density foam strip reinforces the spring and extends its lifespan, making for a mattress that offers excellent support for longer.
1277851-5056074924822
We provide our award-winning Free Next Day Delivery service to most locations, sending a proper night’s sleep out far and wide. Hassle-free and convenient, you can even choose a time and day that suits you, have us take your old mattress away for recycling, and get us to deliver to your room of choice!
In some places, a small fee will be charged to help us get you your best night’s rest as quickly as possible. Take a look at the following postcodes to see if this applies to you, and if you’re not sure, then use our helpful Postcode Checker to help you shop with confidence.
Sealy 5 Year Guarantee
In the unlikely event of a defect in material or workmanship occurring within the 5 year guarantee period, we will arrange to repair or replace the item under complaint free of charge at our discretion.
150,270+ Trees planted so far
Award winning delivery
Planet-friendly disposals
Buy now, pay later with Klarna
18+, T&Cs apply, Credit subject to status4.7 (10)
4.5 (4)
Size | Imperial | Metric |
---|---|---|
Small Single | 2'6" x 6'3" | 75cm x 190cm |
Single | 3' x 6'3" | 90cm x 190cm |
Small Double | 4' x 6'3" | 120cm x 190cm |
Double | 4'6" x 6'3" | 135cm x 190cm |
King Size | 5' x 6'6" | 150cm x 200cm |
Super King | 6' x 6'6" | 180cm x 200cm |
European Small Single | 2'8" x 6'6" | 80cm x 200cm |
European Single | 3' x 6'6" | 90cm x 200cm |
European Double | 4'7" x 6'6" | 140cm x 200cm |
European King Size | 5'3" x 6'6" | 160cm x 200cm |
All mattress sizes given are approximate and stated sizes refer to the sleeping surface only. Mattresses sizes may vary slightly from their stated dimensions due to manufacturing tolerances, please allow +/- 20mm.
You can spread the cost of purchases over £400 without any fees or interest thanks to our partnership with Klarna, a payment service provider.
Available payment options
18+, T&Cs apply, Credit subject to status. Bedsonline.biz Ltd is authorised and regulated by the Financial Conduct Authority (FCA FRN 710091) and acts as a credit intermediary and not a lender, offering credit products provided exclusively by Klarna Bank AB (publ). Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply. Klarna’s [Pay in 3 instalments] [and] [Pay in 30 days] are unregulated credit agreements.Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Ts&Cs and late fees apply.