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Comfort trial

Comfort fillings
Firmness rating

Support system
Drift off into a supportive slumber with the Silentnight Air Plus 1400 Mirapocket® Ortho Mattress. The extra firm feel paired with sturdy Mirapocket® springs helps to relieve aches for a better rest.

Silentnight's innovatively designed pocket springs are scientifically proven to respond to your unique shape. The zoned springs enhance spinal alignment, posture and pressure relief.

Soft synthetic fillings create an incredible cosy feel. These fillings are durable and resilient, maintaining its shape and quality. A great balance between comfort and value for money.

Durable edge-to-edge support provides a maximised sleeping surface for a more secure sleep. Sit and lay comfortably right to the very edge with zero 'roll-off' sensation.

Helping to promote a healthy sleeping position. Orthopaedic support is specially designed to provide enhanced spinal alignment, joint support and improve posture.
Our firmest rating. Highly supportive with a very firm, sturdy feel

About 9.8 inches deep. Depth is an important factor when buying a mattress as it can affect the suitability for particular bedding, mattress toppers and bed frames.

A traditional and elegant design that holds fillings in place whilst enhancing the stability of the mattress. The luxurious tufting ensures zero shifting, shape loss or sagging.

A sumptuously soft finish that provides additional cosiness and warmth. Knitted covers enhance airflow and are incredibly breathable. So, you can enjoy a cooler snooze.

With a single-sided mattress, there's no need to flip. Simply rotate every few months to care for your mattress. Fuss free mattress maintenance!

For your peace of mind

Expertly handcrafted in the UK. This product helps to support our economy and helps to reduce environmental impact.

This product conforms to BS7177: 2008, for use at home

For the highest standards of quality and safety
Sleep better with the strong support of the Silentnight Air Plus 1400 Mirapocket® Ortho Mattress, designed for orthopedic bliss.
Zoned spring system
The core of this mattress is made with 1400 Mirapocket® springs. Encased in individual fabric pockets, each spring responds to your movement to keep you supported in every position. Zoned in the centre third, the spring unit offers firmer support to your shoulders, back and hips. This helps to reduce aches so you can wake feeling rejuvenated.
Extra firm support
Rated extra firm, this is the ideal firmness for back sleepers or if you are looking for orthopedic support. This mattress has been traditionally tufted. Tufting helps secure mattress layers in place, increasing stability and the firm feel.
The border of the mattress is reinforced with a rod edge. Attached to the spring unit to reduce dipping when met with weight. This means you can sleep right to the edge and enjoy a maximised sleep space without a ‘roll off’ feel.
Fresh feeling
Featuring breathable Air Plus fibres, this mattress keeps you comfortable night after night. Air Plus fibres are breathable, increasing air flow through the mattress to dispel heat and moisture. This helps to provide a fresher, cooler feel.
Increasing the comfort are two layers of polyester fibres. Naturally breathable, these fibres enhance the fresh feel.
Easy care
To ensure upkeep is straightforward and easy, this mattress is single-sided. This means you don’t have to fret about flipping the mattress. Simply rotate top to toe to encourage even wear and extend mattress lifespan.
Expert construction
Designed by a leading sleep brand and made right here in the UK, this mattress has been held to high standards.
Certified as a B Corporation™, Silentnight ensures social and environmental practices are to a high level with full transparency. This means your mattress is backed by a company that cares about good practices to give you the best experience.
Purchase with confidence thanks to the 5 Year Guarantee.
This mattress comes with a 100-Night Comfort Trial - like all of our mattresses!
The trial lets you test your mattress for up to 100 nights. If it's not quite right for you, you can exchange it for a new one. To be eligible for the Comfort Trial, you'll need to purchase a mattress protector from MattressOnline with your new mattress.
It can take some time to get used to a new mattress, which is why we ask you to sleep on your mattress for 30 nights. If you're not happy with the feel after 30 nights, simply contact our Customer Service Team, and we'll arrange a mattress exchange.
| Firmness | Extra firm |
| Comfort fillings | Soft White Fibres |
| Support system | Mirapocket Springs |
| Pocket spring count | 1400 |
| Back care | Orthopaedic support |
| Edge support | Yes |
| Cover | Knitted cover |
| Single-sided | Yes |
| Guarantee | 5 years |
| Awards & accreditations | Handcrafted in the UK, Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Downloads | Silentnight Guarantee, Product Care and Assembly Instructions |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 24cm |
| Small Double | 120cm | 190cm | 24cm |
| Double | 135cm | 190cm | 24cm |
| King Size | 150cm | 200cm | 24cm |
| Superking | 180cm | 200cm | 24cm |
Please allow for a tolerance of +/- 2cm
The following delivery methods apply to mainland England and most of Scotland, Wales and Northern Ireland. Please read our delivery page for more information.
Delivery within 10-14 Days We’ll call you to arrange delivery | FREE |
Delivery to the front door of your building | Yes |
Delivery to your room of choice | £20.00 |
Mattress recycling We'll take away your old mattress | £35.00 |
Delivery is on an all-day service, 7am - 8pm for mainland England and most of Scotland, Wales and Northern Ireland.
Need further information? Please visit our Delivery page.
A balanced snapshot of what customers love (and what they don't), generated by AI.
Described as firm but considered it very firm. However a mattress topper has evened out the firmness and is now very comfortable. Excellent for those with back problems and no roll together.
Verified Purchase
Good quality product. Am really impressed with it. It was recommended to me by a friend and they had made the right choice for me.
Verified Purchase
Very very firm! Test before purchase!
Verified Purchase
it's good and hard
Verified Purchase
Very comfortable mattress
Verified Purchase
Comfy, allergy protection and a great price too
Verified Purchase
The mattress is really comfortable. There was an issue with the courier but MattressOnline were able to make it up with excellent customer service
Verified Purchase
Arrived on time and is very comfortable.
Verified Purchase
Very firm but comfortable mattress, ordered on line but trusted the brand and although only had it a month I am pleased with my purchase. It has a 5 year guarantee so I expect plenty of good nights sleep.
Verified Purchase
I am pleased with the Mattress, as it is Very good quality at a Good competitive price. I would advise paying a little extra for the White Glove Service. This will save you unpacking it and getting it onto the bed. My fault, should have read the small print. Nevertheless I Highly recommend this Mattress
Verified Purchase
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Sunday: 10am - 4pm
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Sunday: Closed
customerservice@mattressonline.co.uk