Description
The PosturePro Ortho Dream Onethird Mattress is one of PosturePro's firmest mattresses! The aptly-named Ortho Dream Onethird is perfect for anyone looking for a really firm, supportive feel.
Top-rated!
Here at Mattress Online, we've given this mattress our own stamp of approval as it's one of our Top Picks for 2025! We're confident you'll love this mattress and everything it has to offer, so why not treat yourself today.
The perfect ortho support
This mattress is built using PosturePro's remarkable Onethird spring system with extra firm support, covered with a thick layer of soft supportive fillings for extra comfort, and finished off with a cover of deeply quilted damask fabric.
So many benefits
Onethird springs innovatively prevent the unpleasant roll-together effect sometimes found in cheaper mattresses, by running the springs from top-to-bottom in the mattress rather than from side to side. This provides separate sleeping zones for each partner - as demonstrated by PosturePro's well-known hippo and duck.
Another benefit of Onethird is the way the mattress is arranged into three different comfort and support zones - Silentnight makes sure to give stronger support to the heavier areas of your body, and mellower support for your head and neck. The aim is to provide the support you need, no matter your body type.
Eco-friendly comfort
The Ortho Dream Star comes complete with breathable and fresh Eco Comfort Fibres™ that help keep you cool while you sleep. Made from 100% sustainable sources, you can enjoy eco-friendly comfort that helps to care for our planet.
No allergens here
The PosturePro Ortho Dream Onethird Mattress is hypoallergenic and resists dust mites, making it a great choice for allergy sufferers, or indeed anyone who wants a healthy night's sleep.
Benefits
- A Top Pick for 2025!
- Onethird springs - great rest whether you're big or small
- Enhanced hip support - where you need it the most
- Designed to relieve pressure points, giving you a properly restful night
- Comfort fillings over the springs are made of soft fibres
- Breathable Eco Comfort technology helps keep you cool and fresh
- Your new mattress doesn't have to cost the earth - Eco Comfort Fibres™ are 100% sustainable
- Extra-firm ortho feel
- Mattress height 24cm (approx)
- Single-sided - no need to turn the mattress
- 5 Year Guarantee
- Made in the UK
Weights: Single: 13.5kg, Small Double: 18kg, Double: 20.5kg, King Size: 24kg, Superking: 28.5k
Disclaimer: Each mattress spec is reflected in the description and details on the page, Please note however that the outside cover can sometimes be a bit different to the images reflecting on the season and time of year
Delivery
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.
- AB10-AB16, AB21-AB25, AB30-AB39, AB41-AB45, AB51-AB56
- CA1-CA9
- DD1-DD11
- DG1-DG14, DG16
- EH1-EH49, EH51-EH55, EH91, EH95, EH99
- FK1-FK21
- G1-G5, G9, G11-G15, G20-G23, G31-G34, G40-G46, G51-G53, G58, G60-G79, G18-G84, G90
- IV1-IV19, IV30-IV32, IV36
- KA1-KA30
- KY1-KY16, KY99
- LA1-LA7
- ML1-ML12
- PH1-PH26
- TD1-TD15
30 Night Sleep Trial
Sleep on your new mattress in the comfort of your home for a full 30 nights. Take your time to feel the support, comfort, and pressure relief it provides.
If you’re not completely satisfied within the trial period, you can return or exchange it with no hassle and no stress.
We want you to be confident that your mattress is the perfect match for your sleep.
Warranty & Guarantee
Rest easy knowing your mattress is protected with our 5-year warranty. Crafted with quality materials and long-lasting comfort in mind, your mattress is designed to stay supportive night after night.
If any manufacturing faults or defects appear within the warranty period, we’ll repair or replace your mattress — no hassle, no extra cost.
Your comfort and peace of mind are always guaranteed.
Why Choose One Third
3 Year Warranty & 30 Night Trial
We're committed to your satisfaction and offer a 3 Year Warranty & 30 Night Trial on all products. If you're not happy with the product, within 30 days of your purchase, we'll refund your money and pick up the bed at NO cost to you
Complete Buyer Protection
Buy with confidence with PayPal, pay in installments or pay cash on delivery. We offer a variety of payment methods to suit your needs
Made in Britain – Comfort Delivered Fast
Enjoy your new mattress in no time with zero hassle. All our mattresses arrive ready to use — simply unbox, let it expand, and relax. No tools, no complicated setup, and no DIY expertise required.
Designed and manufactured in Britain for comfort, quality, and convenience.