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Representing the best of modern sleep technology, the UNO® Harmony Ortho Cool 3000 Mattress provides medium firm support with orthopaedic pressure relief for the most restorative night's sleep possible.
Thousands of individually pocketed springs target support to your hips, shoulders and spine, keeping your posture controlled to help ease aches and pains. These innovative springs react to your changes in movement throughout the night, tailoring orthopaedic support as you need it.
A layer of contemporary reflex foam offers versatile support, contouring to your body shape for personalised comfort and ultimate pressure relief. Less heat retentive than memory foam, this latex layer keeps you wonderfully cool and fresh all night long.
Reinforced edges let you enjoy this comforting support right to the very edges of the mattress, preventing side sagging and letting you roll around as much as you need. No roll together technology ensures you don't drift towards the centre of the mattress, instead providing personalised sleeping zones for you and your partner so you can rest undisturbed.
A removable cover makes this mattress easy to clean and hygienic, with hypoallergenic properties making it ideal for allergy sufferers or those who simply prefer a cleaner sleeping environment.
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UNO® 5 Year Guarantee
In the unlikely event that you discover a fault with your UNO® mattress as a result of a material or manufacturing error, you're covered by a generous five year guarantee.
Free Delivery in
Place your order now and we'll contact you to arrange delivery when your order is ready for despatch. You can then choose our popular next day delivery or select a day & time of your choice and get delivery when it's convenient for you.
134,050+ Trees planted so far
| 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 +/- 2 inches (5cm).
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.
*Delivery charges may apply for some areas. Please see our delivery page for more information.
1. Order by 5pm for next day delivery between Monday-Friday, 12pm on Saturday and 3pm on Sunday. The 'Order by' time may be subject to change dependant on our delivery partners.
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.
