Price Drop Sale
Up to 50% off
Ends in… 00dd 00hh 00mm 00ss
NOW ON
Dormeo

Dormeo Octasmart Classic King Size Mattress Topper

Review Stars
4.4/5
(15 Reviews)
Selected size: King Size
Selected Size: King Size
£219 SAVE £300
RRP £519 WAS £279

Check delivery options in your area

Delivery Options

Delivery 7 to 14 days
Free
3 payments of £73.00
Klarna

Pay in 3

Based on a spend of £219

3 interest-free payments of £73.00

The first payment is made at point of purchase, with the remaining 2 payments scheduled automatically every 30 days. No fees

For more information about Klarna click here.

Delivery
Returns Policy

Features You'll Love

  • Medium - Good all rounder for front, side or back sleepers.
  • Internationally renowned brand ensuring quality, innovation and restorative sleep solutions
  • Award Winning Octasprings system distributes body weight and correctly aligns your spine to improve deeper levels of sleep
  • Contains aerocell foam that provides exceptional ventilation for a refreshing night's sleep
  • Free 8 year warranty for total peace of mind

Product Description

Dormeo have meticulously designed the Octasmart Classic Mattress Topper to give you an enhanced sleeping experience without requiring an entire new mattress. Innovative Octasprings, Aerocell Foam and Ecocell Foam work together in perfect harmony to offer you exceptional support and spinal alignment, along with increased ventilation for a refreshing night's sleep. The Smart Performance Cover provides another level of comfort and brings extra freshness to the topper by promoting additional airflow, leaving you feeling revitalised each morning.

Medium Tension - Good all rounder for front, side or back sleepers

  • Octaspring Technology - These unique foam springs provide you with excellent support and comfort whilst the ventilation it offers helps you to have a fresher night's sleep. The Octasprings help to distribute weight and correctly aligns your spine, helping you to fall asleep quicker and increase your time in a deeper sleep.
  • Uniquely Breathable Aerocell Foam - A top layer of breathable open cell foam provides gentle pressure relief, medium to firm support and outstanding ventilation when combined with Octaspring technology.
  • Uniquely Breathable Ecocell Foam - Ecocell is a unique foam designed to be permanently elastic with a 3-dimensional cellular structure, providing efficient air circulation and support where you need it. The elasticity of Ecocell foam reduces the painful pressure points that can sometimes cause you to toss and turn during the night. Ecocell has been specially developed to guarantee point adaptable support and remain permanently elastic. A three-dimensional cellular structure allows the material to breathe.
  • Octavent Air System - Octaspring has been proven to be 8 x more breathable than traditional memory foam mattresses. The unique Octaspring ventilation system provides a constant airflow that will cool your bed temperature by up to 3°C. Your body movements will also push warm humid air out of the specially designed sides of the mattress, drawing fresh air back in, providing a fresh healthy sleeping surface night after night.
  • 3 Zoned Body Support - Enjoy head-to-toe zonal support to provide you with total spinal and body support. The honeycomb springs are created in different strengths and densities and layered into body zones for your comfort. The mattress is firmer in areas where greater support is needed, such as the lumbar region and softer in other areas surrounding the head, shoulders and legs.
  • Hypo-Allergenic - Dust mites cannot survive on the product, allowing a healthy environment and peaceful sleep. This product has been treated with an environmentally friendly molecular technology that provides great protection against bacteria, mould and dust mites.
  • Smart Performance Cover - Hundreds of comfort pockets are built into the cover, making you feel like you are sleeping on tiny clouds, and bringing extra freshness to the topper by allowing better air circulation and letting hot air escape.
  • Removable Cover - The mattress cover is removable and can be washed at 40°C to ensure a fresh surface and a healthy night's sleep.
  • 100% Recyclable - This topper is designed to leave 50% less environmental footprint, is free from harmful chemicals and can be fully recycled at the end of its lifespan, for your peace of mind.

Measurements and Dimensions

W - Width x L - Length x D - Depth

  • Single - W 90cm (3ft) x L 190cm (6ft3) x D 7cm (2.8")
  • Double - W 135cm (4ft6) x L 190cm (6ft3) x D 7cm (2.8")
  • King Size - W 150cm (5ft) x L 200cm (6ft6) x D 7cm (2.8")
  • Super King Size - W 180cm (6ft) x L 200cm (6ft6) x D 7cm (2.8")
read more

Best sellers

Don't miss these special offers!

Product Specification

SUMMARY
Brand
Dormeo
Model
Octasmart Classic
Size
King Size (5ft x 6ft 6in) (150 x 200cm)
Category
Mattress Topper
Warranty
8 years
DIMENSIONS
Mattress Depth
7cm / 2.8inch
WHAT'S INCLUDED?
Base
Mattress
Headboard

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.

About The Brand

Dormeo

Dormeo, the home of a great night’s sleep

With over 20 years of experience, Dormeo is now one of Europe's most trusted bedding brands. Their innovative Octaspring technology is genuinely ground-breaking and exclusive to Dormeo. This unique, award-winning system of individually pocketed springs arranged in a three-dimensional configuration is designed to supply support and comfort while also helping to distribute weight evenly across the surface of the mattress.

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 Dormeo dates back ten years. Our independent customer reviews rate Dormeo products 4.7 out of 5, giving us the confidence to provide Dormeo with our seal of approval and our customers' valuable insight when making informed purchasing decisions.

Dormeo is so confident in its products that it offers a lengthy guarantee. Additionally, they provide a generous sleep trial period on many of their products, allowing you to test them at home before making a final decision. (Terms and conditions apply.)

Discover More in this collection

Customer Questions & Answers

  • What is the depth of this mattress topper?

    This mattress topper is 7cm deep.

  • What is this mattress topper made from?

    This mattress topper is made from Octaspring Foam springs, Aerocell Foam and Ecocell foam.

  • Do I put this over my fitted sheet or under it?

    This mattress topper works best when it is directly on the mattress.

  • Is this mattress topper like a fitted sheet or does it have straps?

    This mattress topper sits atop your mattress and is kept in place with the help of your fitted sheet.

  • How long will this mattress topper last?

    This mattress topper has a warranty of 8 years.

  • My mattress is too firm, will this mattress topper help?

    Mattress toppers are designed to offer an extra comfort layer and so can help your mattress feel softer.

Trustpilot Logo
Rated Excellent
Review stars
4.4/5
(15 Reviews)
  • Quality of product 4 / 5
  • Value for money 3.5 / 5
  • 5 Star 10
  • 4 Star 3
  • 3 Star 1
  • 2 Star 0
  • 1 Star 1
View all ratings
5
4
3
2
1
  • Review stars

    Very comfortable

    Mr & Mrs David & Jennifer Eva
    29/03/2025
  • Review stars

    Slides about on the mattress not cheap and is a horrible thing to lay on very uncomfortable

    Linda Warner
    24/03/2025
  • Review stars

    Very worthwhile investment really does the job it’s meant to do. Unfortunately the delivery time was excessive and even then arrived late .

    Anthony Hurworth
    28/02/2025
  • Review stars

    Product good so far. Delivery could have been better

    Dear Mr Fernandez
    29/12/2024
  • Review stars

    Very comfortable. Supports the body well. A great improvement to a mattress.

    Stephen Charity
    17/10/2024
  • Review stars

    Very good quality and so comfortable,like having a new bed.

    Confirmed Customer
    07/10/2024
  • Review stars

    Excellent product

    Rita Bailey
    30/09/2024
  • Review stars

    Excellent product very comfortable

    Confirmed Customer
    25/09/2024
  • Review stars

    Very happy with this mattress it helps me with my back pain thank you so much

    Alan Williamson
    13/09/2024

Highly rated alternatives

Select Size

Single
3ft x 6ft 3in  /  90 x 190cm
£159Save £200RRP £359Was £199
Double
4ft 6in x 6ft 3in  /  135 x 190cm
£189Save £210RRP £399Was £219
King Size
5ft x 6ft 6in  /  150 x 200cm
£219Save £300RRP £519Was £279
Super King Size
6ft x 6ft 6in  /  180 x 200cm
£289Save £350RRP £639Was £349

Size Guide

Metric (cm)
width x length
Imperial (ft)
width x length
Small Single
75 x 190cm
2ft 6in x 6ft 3in
Small Single Long
75 x 200cm
2ft 6in x 6ft 6in
Single
90 x 190cm
3ft x 6ft 3in
Long single
90 x 200cm
3ft x 6ft 6in
Small Double
120 x 190cm
4ft x 6ft 3in
Small Double Long
120 x 200cm
4ft x 6ft 6in
Double
135 x 190cm
4ft 6in x 6ft 3in
Long double
135 x 200cm
4ft 6in x 6ft 6in
European Double
140 x 200cm
4ft 8in x 6ft 6in
King Size
150 x 200cm
5ft x 6ft 6in
King Size Zip & Link
2 x 75 x 200cm
2 x 2ft 6in x 6ft 6in
European King Size
160 x 200cm
5ft 3in x 6ft 6in
Super King Size
180 x 200cm
6ft x 6ft 6in
Super King Size Zip & Link
2 x 90 x 200cm
2 x 3ft x 6ft 6in
Small Emperor
200 x 200cm
6ft 6in x 6ft 6in
Small Emperor Zip & Link
2 x 100 x 200cm
2 x 3ft 3in x 6ft 6in
Emperor
215 x 215cm
7ft x 7ft
Emperor Zip & Link
2 x 107.5 x 215cm
2 x 3ft 6in x 7ft

Custom bed sizes

Made to measure mattresses and divan bases are available – please call 01928 242829.

Delivery

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.

  • Free doorstep delivery across the UK on all orders over £100.
  • Skilled drivers will deliver straight to your home.
  • Option to choose delivery to a room of your choice (small fee applies).
  • Select a delivery day that suits you, check availability by entering your postcode.

Frequently Asked Questions

  • 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

Returns

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.

Frequently Asked Questions

  • 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

Get in the know with our buying guides

View all