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| Support | 1400 Mirapocket® Springs |
| Comfort | Eco Comfort Fibres™ |
| Firmness | Firm |
| Depth | 25cm deep |
| Comfort Trial | 60 Nights |
1400 Mirapocket® springs are individually encased in fabric pockets, helping them to respond to your weight and movements independently for greater targeted support.
Mirapocket® springs are zoned in the center third to give firmer support to your spine, lower back, and hips, promoting better alignment and reducing aches.
The springs' responsive design reduces partner disturbance by isolating movement, helping you enjoy undisturbed sleep night after night.
Stay cooler and comfortable with Eco Comfort Fibres™. They increase airflow through the mattress, drawing heat and moisture away from your body.
Sleep in comfort with Eco Comfort Fibres™ crafted from recycled materials that are kinder to our planet.
The firmer feel of the mattress helps your posture and gently eases tension and discomfort.

Traditionally tufted, each layer is tightly secured together to improve the durability of the mattress while helping to maintain a firmer sleep surface.
A layer formed from recycled fibres provides inviting, plush comfort that is better for the environment. Enjoy a fresher sleep space as these fibres are highly breathable, helping to dispel heat.
Unique to Silentnight, the Mirapocket® support system offers even weight distribution to assist easy movement and improved spinal alignment for an undisturbed night's sleep.
Polyester fibre pad base layer evenly distributes pressure from the spring system across the mattress. This can help increase mattress longevity and support for longer use.
| Mattress Features | Value |
|---|---|
| Firmness | Firm |
| Comfort fillings | Eco Comfort Fibre |
| Support system | Mirapocket Springs |
| Back care | Orthopaedic support |
| Cover | Knitted cover |
| Allergy care | Hypoallergenic |
| Pressure relief | Yes |
| No roll-together | Yes |
| Single-sided | Yes |
| Guarantee | 5 years |
| Awards & accreditations | Vegan-friendly, 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 | Weight |
|---|---|---|---|---|
| Single | 90cm | 190cm | 25cm | 20kg |
| Small Double | 120cm | 190cm | 25cm | 27kg |
| Double | 135cm | 190cm | 25cm | 30.5kg |
| King Size | 150cm | 200cm | 25cm | 35.5kg |
| Superking | 180cm | 200cm | 25cm | 42.5kg |
Please allow for a tolerance of +/- 2cm
We deliver across the UK, with some remote areas offering alternative delivery options. Enter your postcode below to check which delivery options are available in your area.
Enjoy fast, reliable UK delivery with a delivery time slot confirmed on the morning of your delivery, live tracking and drop-off at your front door - or building entrance if you live in an apartment.
| Weekday Delivery | free |
| Saturday & Sunday Delivery | £17.50 |
| Delivery to a Room of Your Choice Free upgrade for King Size and Superking sizes. | £20.00 |
| Mattress Recycling We'll collect your old mattress and recycle it when we deliver your new one. | £35.00 |
Living in an apartment or remote location? Click here to see further details.
Try this mattress at home for 60 nights with our free Comfort Trial. If it's not quite right, you can exchange it easily.
When does the trial start? - Your 60-night Comfort Trial starts the day your new mattress arrives.
What do you need to do? - Sleep on your new mattress for at least 30 nights, using a mattress protector. This gives your body time to adjust and allows the mattress to settle.
How do you exchange? - After 30 nights, if it's not quite right, simply get in touch to exchange it for another mattress of the same size - we'll collect your old one when we deliver the new.
Want to upgrade? Simply pay the difference.
If you choose a lower-priced option, the original cost will stay the same.

Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm