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The Seymour Adjustable Mattress is a pocket spring and foam mattress from Land of Beds, made to work with adjustable bed bases. It's built around a 1000-count pocket spring unit topped with a layer of Air-Lite Comfort Foam, finished with a soft micro quilted cover, in a Medium Firm tension. The pocket springs respond independently to your body's contours while flexing with the base as it moves through its adjustable positions, giving pressure-relieving support whether the bed is flat or raised. Handmade in Great Britain and backed by a 5-year guarantee, it's designed as a standalone purchase for anyone who already owns a compatible adjustable base.
A Medium Firm pocket spring and foam mattress built specifically for use with adjustable bed bases, best suited to sleepers who want supportive comfort, effective pressure relief and the flexibility to change position through the night.
Medium Firm Feel - 4/6: A supportive feel with added stability. Ideal for people who change sleeping position during the night and need a balance of comfort and support.
Best for
Not ideal for
1000 Pocket Spring System
What it is: Individually wrapped springs that respond independently to weight and movement across the mattress.
How it helps you sleep: Tailored support that follows your shape, with minimal motion transfer between sleeping partners, while flexing naturally with the adjustable base as it changes position.
Air-Lite Comfort Foam
What it is: A layer of comfort foam that conforms to the body's contours, sitting above the pocket spring unit.
How it helps you sleep: Provides personalised support and pressure relief, helping to alleviate discomfort at the hips, shoulders and lower back for better sleep posture.
Foam Encapsulated Edges
What it is: A high-density foam strip built into the edge of the mattress around the spring unit.
How it helps you sleep: Prevents the mattress from sagging at the border, extending its life and giving a more supportive sleeping area right to the edge.
Micro Quilted Cover
What it is: A soft, breathable and stretchy knitted top panel, quilted for extra cushioning.
How it helps you sleep: Provides a smooth, comfortable and snug sleeping surface with added cushioning from the moment you lie down.
| FEATURE | DETAIL |
|---|---|
| Brand | Land Of Beds |
| Category | Adjustable Bed Mattress |
| Model | Seymour |
| Firmness | Medium Firm (4/6) |
| Mattress Type | Pocket spring and comfort foam |
| Spring System | 1000 Pocket Springs |
| Comfort Layers | Air-Lite Comfort Foam |
| Cover Material | Micro quilted cover |
| Mattress Finish | Micro quilted |
| Mattress Depth | 25cm (9.8'') |
| Edge Support | Yes - foam encapsulated edges |
| Motion Isolation | Yes |
| Hypoallergenic | Yes - foam construction is naturally resistant to dust mites and allergens |
| Care Instructions | No need to turn - rotate head to toe regularly to extend lifespan |
| Compatible Bed Bases | Adjustable bed bases only |
| Single or Double Sided | Single sided - do not flip |
| Country of Manufacture | Great Britain |
| Maximum Weight Per Side | 158kg (25st) - stated by the manufacturer as a single weight limit, not per side |
| Guarantee | 5 years |
| Ideal For | Back sleepers, front sleepers, combination sleepers, couples |
| Fire Resistance | BS7177:2008 compliant |
| SIZE | WIDTH x LENGTH x DEPTH |
|---|---|
| Adjustable Small Single | 75cm (2ft6) x 200cm (6ft6) x 25cm (9.8'') |
| Adjustable Single | 90cm (3ft) x 200cm (6ft6) x 25cm (9.8'') |
| Adjustable Small Double | 120cm (4ft) x 200cm (6ft6) x 25cm (9.8'') |
| Adjustable Double | 135cm (4ft6) x 200cm (6ft6) x 25cm (9.8'') |
| Adjustable King Size (split - 2 x 75cm) | 150cm (5ft) x 200cm (6ft6) x 25cm (9.8'') |
| Adjustable Super King Size (split - 2 x 90cm) | 180cm (6ft) x 200cm (6ft6) x 25cm (9.8'') |
Vs firmer mattresses: The Medium Firm tension and pocket spring and foam construction give a good balance of pressure relief and stability. If you're a combination sleeper who changes position often, or share a bed and want reduced motion transfer, this is likely the better choice. Firmer mattresses suit heavier sleepers or those who want a more rigid, supportive surface.
Vs softer mattresses: This mattress has more underlying support than a soft-tension option, while still offering a comfort layer of Air-Lite foam. Softer mattresses can feel more immediately plush but may not maintain the same spinal alignment as consistently, particularly for combination sleepers or heavier individuals.
Vs premium and luxury mattresses: This mattress shares the same pocket spring and foam construction principles found in higher-priced options in the range. The difference typically lies in the depth of the comfort layers and the spring count, rather than any compromise in quality, and it remains purpose-built to work with an adjustable base.
The Seymour Adjustable Mattress is backed by a 5-year guarantee against defects in materials and workmanship. Given the quality of the pocket spring and foam construction, this is a mattress built to work reliably with your adjustable base for years to come.
Land of Beds Best Seller - One of our most-purchased mattresses, based on sales volume, customer reviews and long-term value.
The Seymour Adjustable Mattress delivers supportive, pressure-relieving comfort built specifically to work with an adjustable base - a Medium Firm pocket spring and foam construction, handmade in Great Britain and backed by a 5-year guarantee. If you already own a compatible adjustable base and want to refresh the mattress on top of it, this is a straightforward like-for-like upgrade.
Not sure which 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.
As a third-generation business, Land of Beds has built a strong reputation for offering top-notch products and exceptional customer service. Land of Beds provides high-quality, durable, and comfortable bedding options across various price points. With a focus on customer satisfaction, we stand behind our products with excellent warranties and a commitment to ensuring customers are delighted with their purchases.
Discover the exceptional quality of our exclusive product line at Land of Beds. We take pride in providing our customers with the finest products available. With our products consistently receiving rave reviews, averaging 4.7 out of 5, you can trust the valuable insights from our satisfied customers when making informed purchasing decisions. Experience superior quality and confidently make your next sleep-related purchase at Land of Beds.
With a longstanding reputation for excellence, we are dedicated to helping as many people as possible achieve a better night's sleep. Our commitment to quality is reflected in our 'Made in Britain' products, reassuring you of superior craftsmanship. Rest easy knowing that Land of Beds stands behind the quality of its products with our guarantee, showcasing our unwavering confidence. Discover the perfect bedding solution for your needs and sleep soundly with Land of Beds.
The mattress is perfect and just what we wanted and recommend highly
read more
Comfortable at present not sure how long it will last.
read moreIs this mattress suitable for an adjustable bed?
Yes this mattress is designed to be used on an adjustable bed.
What is the depth of this mattress?
This mattress is 25cm deep.
How does an adjustable bed mattress differ from a regular mattress?
An adjustable mattress is designed to flex and contour to different positions when used with an adjustable frame which allows for customised comfort and support. A regular mattress is designed to lay flat and cannot be bent.
Can I sleep on this mattress straight away?
Yes, you can sleep on your mattress straight away.
Will this mattress make me hot?
This product has properties that help wick away moisture allowing air to circulate through the mattress. Therefore in most situations this mattress won't cause excessive heat.
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
