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The UltraGel 3000 Box Top is a firm hybrid mattress from Silentnight, built around a two-tier Mirapocket spring system of 3000 individually pocketed springs for targeted, supportive comfort. A gel-infused UltraGel foam comfort layer works alongside an additional foam layer to relieve pressure and help regulate temperature, all finished with a plush Box Top for extra comfort at the surface. Firm (5/6) throughout, it's hand tufted in Great Britain and backed by a free 5-year guarantee for total peace of mind.
A Box Top hybrid mattress with a 3000-spring Mirapocket system and gel-infused UltraGel foam, best suited to sleepers who want firm, supportive comfort, effective temperature regulation and reduced partner disturbance.
Firm Feel - 5/6: A supportive, solid feel designed to keep your body well supported throughout the night. Ideal for back and front sleepers, or those who prefer a firmer sleeping surface.
Best for
Not ideal for
Mirapocket Spring System
What it is: A core of 2000 individually pocketed Mirapocket springs, topped with an additional 1000 mini springs for a total of 3000 springs, each moving independently within its own fabric pocket.
How it helps you sleep: Springs respond individually to your body weight and position, spreading pressure evenly across the mattress for zoned support and correct spinal alignment, while minimising motion transfer between sleeping partners.
UltraGel™ Gel-Infused Foam
What it is: Silentnight's gel-infused foam layer, engineered to be more breathable and lighter than standard foam.
How it helps you sleep: The gel infusion helps draw heat away from the body for a cooler night's sleep, while evenly distributing pressure and adapting to your movement to reduce partner disturbance.
Comfort Foam Layer
What it is: A supportive foam layer positioned above the spring system.
How it helps you sleep: Adds an extra layer of cushioning above the firm spring support, softening the surface feel without compromising the mattress's overall firmness.
Box Top Construction
What it is: A raised, upholstered top panel built into the surface of the mattress, adding a deeper comfort layer than a standard flat mattress.
How it helps you sleep: Delivers a plusher first-touch feel and additional pressure relief at the sleeping surface, without compromising the firm support underneath.
Hand Tufted Finish
What it is: A traditional upholstery method where fillings are secured by hand with tufts running from the top of the mattress to the bottom.
How it helps you sleep: Keeps fillings evenly secured in place over time, so the mattress holds its shape and comfort for longer.
Flag-Stitched Handles
What it is: Reinforced handles stitched into both sides of the mattress.
How it helps you sleep: Makes the mattress easier to position and manoeuvre during setup and when rotating.
| FEATURE | DETAIL |
|---|---|
| Brand | Silentnight |
| Category | Mattress |
| Model | UltraGel 3000 Box Top |
| Firmness | Firm (5/6) |
| Mattress Type | Box Top hybrid - pocket springs with gel-infused foam |
| Spring System | Mirapocket Spring System |
| Spring Count | 3000 |
| Comfort Layers | UltraGel gel-infused foam, Comfort foam |
| Mattress Finish | Hand Tufted |
| Mattress Depth | 35cm |
| Motion Isolation | Yes |
| Temperature Regulation | Yes - UltraGel gel-infused foam |
| Handles | Yes - Flag-stitched |
| Compatible Bed Bases | Slatted (slats no more than 7cm apart) and divan bases |
| Single or Double Sided | Single sided - do not flip |
| Country of Manufacture | Great Britain |
| Maximum Weight Per Side | 114kg (18st) |
| Guarantee | 5 years |
| Ideal For | Back sleepers, front sleepers, heavier sleepers |
| Certifications | National Bed Federation (NBF) Approved |
| Fire resistance | BS7177:2008 compliant |
| Sustainability | Zero Waste to Landfill manufacturing policy |
| Packaging Type | Flat-packed |
| SIZE | WIDTH x LENGTH x DEPTH | WEIGHT |
|---|---|---|
| Single | 90cm (3ft) x 190cm (6ft3) x 35cm (13.8'') | 36.5kg (80lbs) |
| Small Double | 120cm (4ft) x 190cm (6ft3) x 35cm (13.8'') | 48kg (106lbs) |
| Double | 135cm (4ft6) x 190cm (6ft3) x 35cm (13.8'') | 54kg (119lbs) |
| King Size | 150cm (5ft) x 200cm (6ft6) x 35cm (13.8'') | 63kg (139lbs) |
| Super King Size | 180cm (6ft) x 200cm (6ft6) x 35cm (13.8'') | 73.5kg (162lbs) |
Vs softer mattresses: This mattress has more structural support underneath the comfort layers than a softer option. Softer mattresses can feel more immediately plush but may not maintain spinal alignment as consistently for back and front sleepers, or for heavier sleepers who need firmer support.
Vs medium mattresses: This mattress gives a more solid, level feel with less sink than a medium option, so hips and shoulders stay well supported rather than cushioned into the surface. It suits back and front sleepers particularly well, and those who simply prefer a firmer surface to sleep on.
Vs premium and luxury mattresses: This mattress shares the same core principle as higher-priced ranges - individually pocketed springs paired with a temperature-regulating comfort layer. The difference is typically in the depth and number of comfort layers and the use of natural versus synthetic fillings, rather than any compromise in build quality.
The UltraGel 3000 Box Top is backed by Silentnight's 5-year manufacturer's guarantee against defects in materials and workmanship. With a 3000-spring Mirapocket system and hand tufted construction, this is a mattress built for everyday durability, and the guarantee reflects that.
National Bed Federation (NBF) Approved - Independently verified to meet strict UK standards for quality, safety and responsible manufacturing.
Zero Waste to Landfill Policy - Manufactured under a policy designed to reduce carbon footprint and support a circular economy, so less of what goes into making this mattress ends up in landfill.
The UltraGel 3000 Box Top pairs a responsive 3000-spring Mirapocket system with cooling UltraGel foam and a plush Box Top finish, all in a firm feel built for solid, consistent support. If you're a back or front sleeper, a heavier sleeper, or simply prefer a firmer surface to sleep on, this is one to consider.
Not sure this is the right feel for you? See our Mattress Buying Guide for expert guidance.
| ITEM | INCLUDED? |
|---|---|
| Mattress | Yes |
| Base | No |
| Headboard | No |
Boasting a wealth of experience spanning over 75 years, Silentnight is the UK's leading and most trusted bed and mattress manufacturer. Renowned for exceptional quality, comfort, craftsmanship, durability, and commitment to innovation, Silentnight products are carefully constructed and put through rigorous testing in their specialist UK factory.
At Land of Beds, we are proud to be able to offer our customers high-quality, luxurious products that are affordable and accessible to all consumers. Our relationship with Silentnight dates back many years, and our independent customer reviews rate Silentnight products 4.7 out of 5, giving us the confidence to provide Silentnight with our seal of approval and our customers' valuable insight when making informed purchasing decisions.
Designed to help you get a good night's sleep night after night, expert artisans with a wealth of experience and knowledge go into ensuring all products are made to the highest standard with every detail considered. With a warranty, you can sleep with peace of mind and assurance of the quality of their products.
Is this mattress suitable for a slatted base?
Yes, this mattress is suitable for a slatted base as long as your slats are in good condition and no further apart than 7.5cm.
Do I need to turn this mattress?
This is an easycare mattress, which means you do not need to turn the mattress over, however you should rotate from head to toe on a regular basis to ensure even use.
How long will this mattress last?
This mattress is guaranteed for 5 years.
Can I sleep on this mattress straight away?
Yes, you can sleep on your mattress straight away.
Is this mattress suitable for a back sleeper?
Yes, this mattress is a firm tension and suitable for back sleepers.
What is the difference between gel and memory foam?
Gel is a synthetic material that is a very similar to memory foam that offers a cooler sleeping surface and has a softer feel. They are both good at pressure relief and reducing disturbance from a sleeping partner.
Made to measure mattresses and divan bases are available – please call 01928 242829.
For full Terms and Conditions please click here.
Our experienced delivery team can take away your old bed or mattress when delivering your new one. Please ensure you have dismantled your old bed prior to delivery.
Simply add this service to your order at checkout.
What products will you remove?
We will remove mattresses, divan beds and bed frames (subject to all beds being dismantled first). Add this convenient service to your order at checkout.
Do I need to dismantle my old bed before collection?
Yes, your old bed must be fully dismantled.
Can I add Removal and Recycle on after placing my order?
You can either add it to your order on the basket page and pay at checkout, or if you would like to add it after you have checked out, simply contact us on 01928 242829 before your order is due for delivery.
Do you recycle the beds and mattresses you collect?
When we remove your old bed or mattress, we ensure that it is disposed of in an environmentally responsible way. All products are sent to The Furniture Recycling Company, the UK's largest and most trusted furniture recyclers.
Our skilled drivers deliver throughout the UK and will deliver straight to your home. Free doorstep delivery is available on many products and you can also choose delivery to room of choice for an additional fee.
How much is delivery?
We offer free delivery to most of the mainland UK for orders over £100; there are applicable charges for deliveries to the highlands or far out UK, which can be found by putting your postcode into the delivery section on the product page. For orders under £100, there is a £10 charge.
How long does delivery take?
Once you select the required product, an approximate delivery time will be quoted on the product page before adding the item to your basket. During checkout, you will either be given the option to select your date, or we will state an estimated time for delivery. Once you have placed your order, we will contact you to book a date within the timeframe quoted.
Will I be contacted beforehand to arrange a delivery slot?
Once you have placed an order, our delivery team will contact you directly to arrange a suitable delivery slot, either via email, call, or text message.
Can I choose my delivery day?
If the product is available for next-day delivery, you can select a date at checkout. For all other products, you will be presented with an estimated timeframe for delivery. After placing your order, our delivery team will contact you via e-mail, text or call to arrange a suitable delivery day/time.
Read all our Delivery FAQs
We have an easy returns policy: If you change your mind, we're happy to accept returns within 14 days of you receiving your product, as long as they are unused and unassembled. However, for hygiene reasons, we can't take back products that have been slept on, unless there's a fault.
Custom-made products can only be returned if they are faulty.
Please take a look at our Terms & Conditions.
Can I return a mattress I've slept on?
Normally, mattresses can only be returned if they're unused within 14 days. But if your mattress has a trial period, please refer to the mattress trial information page for further details.
How long do I have to return an item I've purchased online?
You have 14 days to return an item if bought online, subject to the item not being used or assembled. Please note, if you wish to inspect a mattress, please ensure the protective outer plastic packaging is not removed, as this may affect your right to return due to health and hygiene reasons. Any product that is made to order/customised cannot be returned unless faulty.
Do I have to pay for the return?
To return your product, you can either arrange the return yourself, or we can happily arrange it on your behalf for a charge, which will be deducted from your refund. The collection charge covers the expenses involved in picking up the item from your location and safely bringing it back to our warehouse. For bedding items, the amount is £20, and for large/bulky items, charges start from £95 (depending on the product/postcode).
Can I return a part or fully assembled item?
Unfortunately, once an item is assembled, whether partially or fully, we can't accept returns unless the item is faulty.
Read all our Returns FAQs
Our skilled drivers deliver throughout the UK and will deliver straight to your home. Free doorstep delivery is available on many products and you can also choose delivery to room of choice for an additional fee.
How much is delivery?
We offer free delivery to most of the mainland UK for orders over £100; there are applicable charges for deliveries to the highlands or far out UK, which can be found by putting your postcode into the delivery section on the product page. For orders under £100, there is a £10 charge.
How long does delivery take?
Once you select the required product, an approximate delivery time will be quoted on the product page before adding the item to your basket. During checkout, you will either be given the option to select your date, or we will state an estimated time for delivery. Once you have placed your order, we will contact you to book a date within the timeframe quoted.
Will I be contacted beforehand to arrange a delivery slot?
Once you have placed an order, our delivery team will contact you directly to arrange a suitable delivery slot, either via email, call, or text message.
Can I choose my delivery day?
If the product is available for next-day delivery, you can select a date at checkout. For all other products, you will be presented with an estimated timeframe for delivery. After placing your order, our delivery team will contact you via e-mail, text or call to arrange a suitable delivery day/time.
Read all our Delivery FAQs
We have an easy returns policy: If you change your mind, we're happy to accept returns within 14 days of you receiving your product, as long as they are unused and unassembled. However, for hygiene reasons, we can't take back products that have been slept on, unless there's a fault.
Custom-made products can only be returned if they are faulty.
Please take a look at our Terms & Conditions.
Can I return a mattress I've slept on?
Normally, mattresses can only be returned if they're unused within 14 days. But if your mattress has a trial period, please refer to the mattress trial information page for further details.
How long do I have to return an item I've purchased online?
You have 14 days to return an item if bought online, subject to the item not being used or assembled. Please note, if you wish to inspect a mattress, please ensure the protective outer plastic packaging is not removed, as this may affect your right to return due to health and hygiene reasons. Any product that is made to order/customised cannot be returned unless faulty.
Do I have to pay for the return?
To return your product, you can either arrange the return yourself, or we can happily arrange it on your behalf for a charge, which will be deducted from your refund. The collection charge covers the expenses involved in picking up the item from your location and safely bringing it back to our warehouse. For bedding items, the amount is £20, and for large/bulky items, charges start from £95 (depending on the product/postcode).
Can I return a part or fully assembled item?
Unfortunately, once an item is assembled, whether partially or fully, we can't accept returns unless the item is faulty.
Read all our Returns FAQs
