up to
20% off
Free delivery

Comfort trial

Comfort fillings
Firmness rating

Support system
Treat yourself to refreshing, responsive comfort with Silentnight Memory Cool 3000 Mirapocket Box Top Mattress, featuring pressure relieving Memory Cool™ foam, 3000 Mirapocket® springs, and a comforting box top.

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.

Small, individually cased springs provide added comfort to the mattress whilst offering soothing pressure relief. Mini springs decrease motion transfer so you can share the bed undisturbed.

Memory foam creates a cushioned feel by cradling to your unique shape. Enhancing the remarkable comfort, the foam has a sumptuous feel, delivering a cosy sleep.

Offering a soothing night's rest by evenly distributing your body weight across the mattress. The pressure point relief provides the ultimate relaxation needed for a deep slumber.

A micro-quilted cover provides a smooth and soft finish to a mattress. The fabric is stitched into the filling inside the mattress to give it the plush quilted feel.

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.
Gentle support and a plush, softer feel

About 14.6 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.

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
Choose comforting luxury with the Silentnight Memory Cool 3000 Mirapocket Box Top Mattress. Enjoy the sumptuous box top surface with supportive zoned springs and refreshing graphite infused foam.
Box top indulgence
Sink into sumptuous comfort with the Memory Cool™ 3000 mattress. It's expertly designed for responsive support and body-contouring relief. The mattress features a distinctive box-shaped profile. This is similar to a pillow top with enhanced structure and durability. This design feature contains all the comfort elements. And gives your mattress a more luxurious look and feel.
Cool embrace
Enjoy the refreshing feel of Cool Memory™ foam. Silentnight’s in-house testing showed Memory Cool™ foam to be 15% cooler than standard memory foam. It gently embraces your body, taking the pressure off your muscles and joints. All the while, keeping you comfortably cooler. Graphite infused particles within the foam absorb and dissipate body heat. Resulting in a cooler, more restful night’s sleep.
Zoned springs
This mattress features a unique zoned spring system. At its core it has 2000 responsive Mirapocket® springs. These individually adjust to your body weight and movement to keep you supported as you sleep. This spring unit is zoned in the centre third which means it provides firmer support to your shoulders, and hips. Helping to encourage spinal alignment and reduce aches and pains. Providing tailored support exactly where you need it most.
Mini springs
The Mirapocket® springs are paired with 1000 mini springs that add extra comfort. Acting like tiny bellows, they help circulate air through the mattress, improving breathability and keeping you cooler as you sleep.
Tried and tested
Silentnight rigorously tests every mattress to ensure lasting comfort and performance. In-house pressure mapping analysis shows their memory foam helps relieve pressure build-up. While airflow tests revealed that mini springs effectively push air through the comfort layers enhancing breathability.
Trusted quality
As one of the first B-Corp certified sleep brands, Silentnight have proven why they are the UK’s most trusted name in sleep. Their commitment to quality and environmentally responsible practices ensures a better night’s rest and a brighter future for you.
Silentnight has a reputation as one of the world’s most trusted mattress brands. They are known for expert craftsmanship and long-lasting comfort. So you can be assured you’re purchasing true quality backed by a 5 Year Guarantee.
Please note: pocket spring count is based on a kingsize mattress
This mattress comes with a 60-Night Comfort Trial - like all of our mattresses!
The trial lets you test your mattress for up to 60 nights. If it's not quite right for you, you can exchange it for a new one.
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 | Soft to medium |
| Comfort fillings | Mini Pocket Springs, Memory Foam, Microquilted |
| Support system | Mirapocket Springs |
| Pocket spring count | 3000 |
| Edge support | Yes |
| Pressure relief | Yes |
| 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 Product Guarantee |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 37cm |
| Small Double | 120cm | 190cm | 37cm |
| Double | 135cm | 190cm | 37cm |
| King Size | 150cm | 200cm | 37cm |
| Superking | 180cm | 200cm | 37cm |
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.
Next day delivery (weekdays only) Order before | FREE |
Weekday of your choice Order up to 60 days ahead | FREE |
Weekend On Saturday or Sunday of your choice | £17.50 |
Delivery to the front door of your building Free upgrade for Small Double, Double, King Size and Superking to your room of choice | Yes |
Two-hour delivery time slot We’ll let you know on the day before your delivery | Yes |
Call to let you know we’re on our way On your delivery day | Yes |
Delivery to your room of choice Free upgrade for Small Double, Double, King Size and Superking | £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.
First thing you'll notice is that this mattress is huge! At 37cm deep it's significantly taller than a standard mattress. Once it's on the bed you're sitting quite high up which takes a little getting used to. Be prepared to buy extra deep fitted sheets and a protector to match the size.It's rated as medium/soft and I'd say that's spot on. The plush box top gives a soft cushioned feel as you lie down but there's a reassuring level of support underneath that stops you from sinking too far. It took a couple of nights to fully adjust but overall it feels very comfortable and well-balanced.One thing that really stood out is the cooling effect. It seems to work well. Despite some unusually warm nights here in the UK we haven't experienced any overheating or night sweats which is a huge bonus.Motion isolation is impressive too. You barely notice when someone else moves or gets out of bed which has definitely helped with uninterrupted sleep.No noticeable aches or pressure points so far and it's very easy to get comfortable. It feels especially good for back and side sleepers. Still testing how it performs for stomach sleeping but early signs are encouraging.Overall we're really pleased. It's a high-quality luxurious-feeling mattress that offers comfort support and temperature control all in one. A great upgrade.
Verified Purchase
I was so excited when this mattress was delivered and I wasn't left disappointed. It's an absolute giant of a mattress wasn't sure it would go up the stairs. Thank goodness it has it's been a serious life changer. Very supportive and soothing on sore muscles added to the fact I now sleep like a baby. When buying this you definitely need extra deep fitted sheets.
Verified Purchase
I absolutely love this slight night 3000 cool memory foam mattress. It's so thick and super comfortable. I got this one for my son but I definitely should have got one for myself. My son is over the moon with it. He's definitely having a better night's sleep with this mattress which is very breathable and shapes to your body shape helping you have a better night's sleep. 1000% recommend this mattress.
Verified Purchase
comfortable but slightly confusing as it's advertised as soft but it's more of a medium so I went back on the product and if you scroll further down it says medium soft which is probably more fitting… still super comfortable but I like a more softer mattress. Would I pay the ful £1200 without the discount? Probably not mainly because of the firmness and the smell it has a strong strange smell to it that I can't seem to budge I'm hoping it goes away after time
Verified Purchase
Wonderfully comfortable I struggle with overheating in bed but can instantly tell the difference since using this mattress. I'm finally Having Cooler & a more peaceful nights sleep & haven't woken up with the usual aches & pains.These are rather heavy & thick but they don't have to be turned over & this deeper mattress is great if like me you like your bed to be higher up.I would consider this to be one of the best mattresses on the market from what have seen & tried I'm Looking forward to many years of quality sleep Worth every penny Even the cats agree
Verified Purchase
Comfort is 10/10 the support and beathability so amazing. Has great durability and is for sure great value. In love with this mattress. Recommend to anyone looking.
Verified Purchase
Once we finally managed to get up two flights of stairs (oh my god huge effort it weights 55kg) and get it on our bed base it was great. Very comfortable lovely support breathable. I've no idea how we are going to get it out of the bedroom though! One thing I will mention silent nights delivery company will not put the mattress in your room of choice if they need to bend the mattress. It's against their ‘policy.' So unless you're lucky enough to have no corners to manoeuvre around then you should be fine.
Verified Purchase
I got this mattress at a hugely discounted price & wow! What a mattress . It is so thick & super comfortable. My first nights sleep was absolutely incredible. It kept me very cool throughout the night & I felt very supported. I woke up feeling very refreshed which I haven't felt for a long time due to having a cheap mattress. The depth is unreal to the point I need new fitted sheets as mine are not deep enough . Overall I would recommend this mattress to friends / family & any others who are thinking of purchasing an upgrade. It is well worth the money.
Verified Purchase
Just received my new mattress and it is so comfortable and offers great support. With a 5 year guarantee I'm sure it will be super durable and excellent value for money. So many features with it which really add to the overall experience.
Verified Purchase
Rhis mattress is super comfortable sift yet supportive it's durable breathable and keeps me cool. It is super quality and good value for money.
Verified Purchase
1
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 09:30am - 17:30pm
Sunday: Closed
customerservice@mattressonline.co.uk