5 Star Expert Review
Blenheim 1500
Our most celebrated mattress. For 40 years, sleepers have loved the Blenheim.
1500 individual pocket springs – cotton & lambswool fillings – two rows of hand side stitching.
We handmake every mattress to order in our Yorkshire workshop, aiming to produce and deliver it within 6 weeks. Nationwide delivery is free of charge. Your mattress will be brought to your home by two of our experienced team members, who will place it in your bedroom and take away all packaging for responsible recycling. Our current delivery times and delivery FAQs can be found here.
Technology
– Pocket spring construction
– 1500 individual pocket springs in 150cm x 200cm size (5’0″ x 6’6″)
– Deep fillings used on both sides of spring to extend the life of the mattress
Upholstery
– Deep cotton and lambswool fillings
– Finest quality cotton ticking
– Hand tufted with pom-pom woollen tufts
Borders
– Two rows of hand side-stitching for edge to edge support
– Horizontal flag stitched handles to aid mattress turning and rotating
– Brass air vents
– Overall mattress depth: 30cm (12″)
Guarantee
– 10 Year Guarantee
View our full Mattress Size Guide here
UK Small Single …………… 75 x 190cm / 2’6″ x 6’3″
UK Single ……………………. 90 x 190 cm / 3’0″ x 6’3″
UK Small Double ………. 120 x 190cm / 4’0″ x 6’3″
UK Double …………………. 135 x 190 cm / 4’6″ x 6’3″
UK King …………………… 150 x 200 cm / 5’0″ x 6’6″
UK Small Super King ….. 168 x 200cm / 5’6″ x 6’6″
UK Super King ………… 180 x 200cm / 6’0″ x 6’6″
UK Emperor ……………. 200 x 200cm / 6’6″ x 6’6″
We make our mattresses to a metric sizes (cm) as standard. If you would like us to make your mattress to an imperial size (inches) please let us know by filling in your requirements in the comments section at checkout.
We want you to find the mattress that is right for you. If after sleeping on your mattress for a few weeks you feel it’s not quite right, just let us know within 45 days and we’ll find something that better suits your needs. Learn more about our sleep promise
What you need to know
Handmade in our Yorkshire workshop, the Blenheim 1500 combines 1500 individually pocketed springs with layers of natural fillings. It’s a well-balanced mattress that offers comfort, breathability, and dependable support—ideal for a wide range of sleepers.
Where It's Made
Handcrafted to order from Yorkshire
Guarantee
10-year guarantee
Construction
1500 pocket springs with deep cotton and lambswool fillings
Tension
Medium or Firm. (Soft or Extra firm available on request)
Mattress depth
30cm
Care
Turn and rotate regularly to maintain comfort and longevity
Delivery & Lead time
Free delivery with two-person team to room of choice. You can typically expect your mattress within 6 weeks
Customer reviews
Choosing your firmness
Your mattress firmness should match both your body weight and the level of support you find comfortable. As a general guide, a medium tension mattress suits most sleepers (up to around 16 stone / 101kg), while a firm mattress provides a more supportive feel for those between 16–18 stone (101–114kg). Softer tensions are available as part of our bespoke service. If you’re unsure which mattress firmness is right for you, just give us a call and we’ll help you find the right fit.
Not sure? See our firmness guide
Support that adapts to you
Each of the 3000 pocket springs works independently, responding to your body’s movement and weight. This provides tailored support across your whole body while reducing motion transfer, ideal if you share a bed.
Breathable, natural comfort
Layers of natural fillings such as cotton, lambswool and horsehair allow air to move freely through the mattress. This helps regulate temperature, keeping you cool in summer and comfortably warm in winter.
Try it properly at home
Choosing a mattress takes time. That’s why we offer a 45-night sleep promise on standard sizes. Sleep on it, let it settle, and if it’s not quite right, we’ll help you find a better fit.
The good stuff, inside & out!
Every Kensington 3000 mattress is built by hand in our Yorkshire workshop using traditional techniques. Each layer is carefully added to create the perfect balance of comfort and support, with no shortcuts along the way. Natural materials are chosen not just for comfort, but for how they perform, helping regulate temperature and improve breathability. Hand side stitching strengthens the edges, while skilled craftsmanship ensures every mattress is finished to the highest standard.
More about usNeed a hand?
Not sure which tension is right? Or whether this is the right mattress? Our team knows these mattresses inside out and will only recommend what you actually need.
Complete your bedroom
Everything you need for a restful nights sleep
Some of FAQs about mattresses
Is 1500 springs enough?
Yes, 1500 pocket springs provide good support and comfort, making this mattress a great choice for everyday use. Learn more in our mattress buying guide
Do you have a showroom?
We don’t have a show room, but we do offer something even better. The chance for you to try the mattress at home for 45 nights with our sleep promise – much better than lying down for 5 minutes. This gives you the confidence to buy knowing that we’ll always work with you to find the right mattress for you. You can find our more about how this works here.
How long will it last?
With regular turning and care, the Blenheim 1500 is built to provide reliable comfort for many years – we will guarantee it for 10 years! Find out more here.
Find out more
You may have more questions about our other products or processes, you can visit all of our FAQs below.
All our FAQsTry me
Forget the traditional showroom hassle. We believe in comfort that lasts longer than a 5-minute lie down. Our mattresses can be found in some of the UK’s finest boutique and luxury hotels. So, if you were looking for a reason to treat yourself to a relaxing staycation – you’ve just found it! Book that getaway and experience the difference a great night’s sleep (and perfect mattress) can make!
