Based on a spend of £429
3 interest-free payments of £143.00
The first payment is made at point of purchase, with the remaining 2 payments scheduled automatically every 30 days. No fees
18+, T&C apply, Credit subject to status.
For more information about Klarna click here.
Simply apply during checkout.
* If you are retired and receive a pension or registered disabled and unable to work, our finance provider may ask for proof of sufficient income. Credit is subject to status. Terms and conditions apply.
What do I need to apply online?
For more finance FAQs please click here.
The Sealy Caldwell is an extra firm, orthopaedic-support mattress made exclusively for Land of Beds, created to offer maximum firmness and exceptional support where you need it most. It's built around Sealy's PostureTech Core Support Spring System, twice tempered for lasting resilience, with a PowerPack lumbar support layer working in harmony with the springs to soothe aches and pains. Hand tufted and double sided for even wear, this is one of our best-selling mattresses - genuine Sealy quality with a Furniture Industry Sustainability Programme accreditation, proudly made in Cumbria, Great Britain.
A traditional double-sided spring mattress built around Sealy's PostureTech Core Support Spring System and PowerPack lumbar support, best suited to sleepers who want maximum firmness and orthopaedic-level support, made exclusively for Land of Beds.
Extra Firm Feel - 6/6: Our firmest option, offering maximum support and minimal sink. Perfect for front sleepers, heavier individuals, or anyone who prefers a very firm, supportive mattress.
Best for
Not ideal for
PostureTech Core Support Spring System
What it is: Sealy's exclusive spring system, twice tempered to provide a softer feel that gradually firms up as pressure increases.
How it helps you sleep: Delivers dependable, deep-down support that responds to your body weight, with greater resilience that extends the life of your mattress.
PowerPack
What it is: A concentrated spring support system located at the centre of the mattress.
How it helps you sleep: Works in concert with the spring unit to provide additional lumbar support, helping reduce aches and pains for a more restful, undisturbed sleep.
EdgeGuard
What it is: A high-density foam strip that sits alongside the spring unit to prevent sagging.
How it helps you sleep: Extends the usable sleeping area right to the edge of the mattress, so you get consistent support all the way across.
Hand Tufted
What it is: A traditional method of mattress upholstery where fillings are secured by hand with tufts running from the top of the mattress to the bottom.
How it helps you sleep: Keeps all fillings evenly distributed and firmly in place, maintaining a firm, consistent feel and preventing lumps from forming over time.
Mattress Cover
What it is: A 60% polyester, 40% cotton mattress cover.
How it helps you sleep: Provides a durable, breathable sleeping surface.
Handles
What it is: Handles fitted to both sides of the mattress.
How it helps you sleep: Makes it easy to turn and reposition the mattress, helping you maintain it properly for long-lasting comfort.
| FEATURE | DETAIL |
|---|---|
| Brand | Sealy |
| Category | Mattress |
| Model | Caldwell |
| Exclusive to | Land of Beds |
| Firmness | Extra Firm (6/6) |
| Mattress Type | Traditional double-sided spring mattress, hand tufted |
| Spring System | PostureTech Core Support Spring System |
| Cover Material | 60% Polyester, 40% Cotton |
| Mattress Finish | Hand Tufted |
| Edge Support | Yes - EdgeGuard |
| Care Instructions | Turn and rotate once a week for the first 3 months, then once a month thereafter to help fillings settle evenly |
| Handles | Yes - both sides |
| Compatible Bed Bases | Slatted (slats no more than 7cm apart) and divan bases |
| Single or Double Sided | Double sided - can be flipped |
| Country of Manufacture | Great Britain |
| Maximum Weight Per Side | 114kg (18st) |
| Guarantee/Warranty | 5 years |
| Mattress Trial | 100 nights |
| Ideal For | Front sleepers, heavier sleepers, orthopaedic support |
| Certifications | National Bed Federation (NBF) Approved Furniture Industry Sustainability Programme (FISP) Accredited |
| Fire resistance | BS7177:2008 compliant |
| Sustainability | 100% Recyclable |
| Packaging Type | Flat-packed |
| SIZE | WIDTH x LENGTH x DEPTH | WEIGHT |
|---|---|---|
| Single | 90cm (3ft) x 190cm (6ft3) x 28cm (11'') | 22kg (48lbs) |
| Small Double | 120cm (4ft) x 190cm (6ft3) x 28cm (11'') | 29kg (64lbs) |
| Double | 135cm (4ft6) x 190cm (6ft3) x 28cm (11'') | 33kg (72lbs) |
| King Size | 150cm (5ft) x 200cm (6ft6) x 28cm (11'') | 38kg (83lbs) |
| Super King Size | 180cm (6ft) x 200cm (6ft6) x 28cm (11'') | 45kg (99lbs) |
| Super King Size Zip & Link | 2 x 90cm (3ft) x 200cm (6ft6) x 28cm (11'') | 2 x 46kg (101lbs) |
Vs softer mattresses: The Caldwell's extra firm feel gives noticeably more support and far less sink than a softer mattress, keeping your body level throughout the night. If you're a front sleeper, a heavier sleeper, or someone who needs orthopaedic-level support, this is the better choice. Softer mattresses suit those who want a plusher, more cushioned surface.
Vs medium mattresses: This mattress offers a noticeably firmer, more traditional sleeping surface than a medium mattress, with hand tufting that reinforces the firm feel over time. Medium mattresses suit a broader range of sleeping positions, while the Caldwell is built specifically for those who need maximum support.
Vs premium and luxury mattresses: This mattress shares the same PostureTech spring technology and hand-tufted craftsmanship found in higher-priced Sealy ranges. The difference is typically in the additional comfort layers and finishing details, rather than any compromise in the quality of the support system itself.
The Caldwell is backed by Sealy's 5-year manufacturer's guarantee against defects in materials and workmanship. Given the twice-tempered spring construction and hand-tufted build, this is a mattress designed to last - the guarantee reflects that.
National Bed Federation (NBF) Approved - Independently verified to meet strict UK standards for quality, safety and responsible manufacturing.
Furniture Industry Sustainability Programme (FISP) Accredited - Independently recognised for demonstrating a genuine commitment to sustainable manufacturing practices.
The Caldwell delivers maximum firmness and genuine orthopaedic-level support, hand tufted and built to last - one of our best-selling mattresses for good reason. If you're a front sleeper, a heavier sleeper, or simply need a very firm, supportive surface, this is well worth a closer look.
Choosing a mattress online takes trust. That's why the Caldwell comes with a 100 night comfort guarantee - if it doesn't feel right, we'll exchange it. View the full mattress trial policy.
Not sure which Sealy mattress is right for you? See our Mattress Buying Guide for expert guidance on mattress types, fillings and comfort levels.
| WHAT'S INCLUDED? | |
|---|---|
| Mattress | Yes |
| Base | No |
| Headboard | No |
PLEASE NOTE:
All measurements are approximate and are subject to a tolerance of + or - 2cm.
Image is for illustration purposes only.
Pillows, cushions, throws and bed dressings not included.
Perfecting their craft since 1881, Sealy is now one of the UK’s leading bed brands. Renowned for their commitment to quality, comfort, and support, Sealy works with a team of international orthopaedic surgeons, biomechanical engineers, and medical scientists to ensure all products create a fantastic night’s sleep.
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 Sealy dates back many years. Our independent customer reviews rate Sealy products 4.7 out of 5, giving us the confidence to provide Sealy with our seal of approval and our customers' valuable insight when making informed purchasing decisions.
Many prestigious organisations have endorsed Sealy products, including Which, the British Allergy Foundation, BSI, and the Carbon Neutral organisation. Sealy is considered a high-quality, reputable firm by both suppliers and customers, and its products come with an extended guarantee.
Amazing product at an amazing price
read more
Best nights sleep l have had in a long time
read more
Firm and robust - perfect
read more
Great
read more
lovely mattress, very comfortable and a joy to sleep on.
read more
Excellent, Very comfortable bed
read more
very good-solid
read more
Love my new extra firm bed, it did take a little bit of time to get used to it but i wouldnt part with now. Land of beds were lovely too, had an issue with finance which was my mistake and they sorted it swiftly and were so friendly. Thank you
read more
Excellent quality.
read moreIs 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 a turnable mattress, which means you need to turn the mattress over and should rotate from head to toe on a regular basis to ensure even use.
Is this mattress suitable for a back sleeper?
Yes, this mattress is an extra firm tension and suitable for back sleepers.
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.
Can you take away my old mattress?
Yes, we can remove your old mattress at the same time as delivering your new one. You can add this service at checkout.
Does this mattress have an odour?
As with all mattresses, there may be a slight smell when first opened. We liken this to a new car smell, which is non-harmful and will disappear within a few hours.
Made to measure mattresses and divan bases are available – please call 01928 242829.
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
