Welcome to Sloane & Sons

King Size Pocket Sprung Bed Mattress, Knightsbridge Collection

Currently 60% Off RRP | Order Before 14:00 for FREE Next Day Delivery

King Size Pocket Sprung Bed Mattress, Knightsbridge Collection



Availability: In stock

Select your Delivery Date at Checkout


Luxury king sized bed mattress with 1200 individual pocket springs and a quilted memory foam top, for a luxurious and comfortable night’s sleep. The Knightsbridge double bed mattress gives users a comfortable and supportive sleeping experience, the 1200 individual springs move to support your body as needed, unlike old fashioned single coil mattresses.

A layer of quilted memory on each side of the mattress allows for you to flip the mattress every once in a while, this will help the mattress to offer maximum support for as long as possible and also prolong the lifespan of your mattress.

- +

Product Features

Mattress Features
Mattress Features
Mattress Features
Mattress Features
Mattress Features
Mattress Features


If cared for correctly, a luxury bed mattress will give you good service for up to 8-10 years. The Knightsbridge range of mattresses are layered with quilted memory foam on both sides, in order that you may seasonally rotate and flip the mattress which will maintain both the lifespan and the support that the mattress gives you.

As you sleep, you naturally move and change position. Pocket sprung mattresses have individual springs which are housed in their own individual “pockets” and these springs will move in unity with your body as you change position during the course of the night, offering you the essential support that is required during that time.

One of the key factors to attaining a healthy lifestyle is to maintain adequate hours of sleep, as sleep promotes an improved metabolic level when your body is properly rested. Purchasing the very best mattress that you can afford is incredibly important and this fact is overlooked by many people who simply do not realise that a poor night’s sleep affects their activities during the day. Most people spend more time in bed than they do sitting/lounging on their sofa, yet the idea of spending money on a mattress that cannot be seen by visitors is sometimes a purchase that is short changed.


Additional Information

Mattress Size King
Mattress Depth 24cm
Mattress Dimensions 153cm x 200cm
Mattress Firmness 7 / 10 ( 1 = Soft - 10 = Firm )
Mattress Type Pocket Sprung
Mattress Care Double Sided
Tick Composition Tencel
Mattress Weight (Kg) 30.0000
Tuft Type Memory Foam Top Layer
Safety Credentials Conforms to BS 7177: 2008 for Domestic Use (Low Hazard)
Buying Guide

Buying Guide

At Sloane & Sons we understand the importance of a good mattress. At the most fundamental level, a good mattress equals a good sleep, which equals better health. It might sound obvious but you'd be amazed at just how damaging the health effects are of poor sleep. (Don't take our word for it - here's what the NHS has to say.)

Buying a new mattress is a brilliant step towards a great night's sleep. But which mattress should you buy? We want to make sure you make an informed choice, so do please read on. If you still have questions, we would be very happy to speak to you on the phone or via email - don't hesitate to get in touch.

Our primary message is: don't compromise on quality. Being uncompromising doesn't have to cost the earth though - we keep out prices as reasonable as possible but always keep our standards sky high. With our mattresses lasting up to 10 years so, they are a small price to pay for the comfort, relaxation and better health you'll have as a result 365 days a year.

Sloane & Sons specialise in the two most popular type of bed mattress: memory foam and pocket sprung. We know that many retailers, both online and on the high street, offer thousands of choices but there really is no need. It ends up as confusing rather than helpful. We feel that by having a smaller, more focused range of high quality products, this allows you to choose more easily based on things like size, comfort, firmness, price and type of mattress.

Bed Mattress TypeBed Mattress Size (cm)Bed Mattress Size (feet / inches)
Single Width 90cm x Length 190cm Width 3'0" x Length 6'3"
Small Double Width 122cm x Length 190cm Width 4'0" x Length 6'3"
Double Width 135cm x Length 190cm Width 4'6" x Length 6'3"
King Size Width 153cm x Length 200cm Width 5'0" x Length 6'6"
Super King Size Width 183cm x Length 200cm Width 6'0" x Length 6'6"

Memory Foam Mattresses

Memory foam was developed initially by NASA as a material that would absorb great pressure from astronauts' bodies as they re-entered the earth's atmosphere. Today, this technology makes wonderful mattresses as it can relieve stress and pressure points on your body as you relax into the supple embrace of the memory foam.

  • Memory foam moulds as your body heats up and softens the core around you
  • This allows both support as you lie still but also natural and free movement during sleep
  • Alignments of the spine (horizontally) ensures correct posture
  • Memory foam has hypo-allergenic and anti-microbial properties

Memory foam is ideal for people experiencing joint pain and for people who suffer from allergies. Many people without these issues also enjoy the feeling of warmth, support and comfort that memory foam provides.

Pocket Sprung Mattresses

Pocket sprung mattresses are the most common and popular type of mattress in the marketplace. They differ significantly from cheaper alternatives such as bonnel spring or open sprung bed mattresses, which we believe are less comfortable, less supportive and not as good value for money in the long term.

The reason is that pocket sprung mattresses compartmentalise each individual spring in order to evenly distribute the weight and respond to the different pressure points and weights of your body.

  • Ideal if you and your partner differ in height and weight. They will evenly distribute the pressure within the mattress and prevent you from rolling into one another
  • Sloane and Sons mattresses have approximately 1200 individual pocket springs per mattress that are individually housed and this is the benchmark for high level craftsmanship
  • Each 'pocket' works independently from another, to evenly distribute weight
  • This style of mattress allows a good airflow around the body, keeping your comfortable through the night and refreshed in the morning

All Sloane & Sons mattresses have hand-stitched sides and piped edges that underline the quality of design and craftsmanship.


Feefo Reviews - Average 100% (3 reviews)

Date Score Customer Comment Our Response
31-Oct-2016 Product:

I didn't realise how uncomfortable my old mattress was until I slept on my lovely new one. Great value and excellent quality. I need a double bed mattress for my guest room and I know where I will be purchasing it.
22-Feb-2016 Product:

We took the box upstairs, took the rolled up mattress out and snipped open the vac pack.
The mattress unrolled and fitted exactly on the bed where it grew back to its original height within 4 hours.
I made the bed and we slept on it that same night - perfect.
We had a great nights...
Read More.
15-Feb-2016 Product:

The packaging was strong and waterproof and the mattress fitted perfectly on my bed base. We've slept really well on the mattress, it's such good quality and I can recommend it to anyone. zzzzzzzzzzzzzzzzzzzzzzz
Read more reviews on Feefo
Feefo reviews : Average 100% (3 reviews)