Horizon Odyssey Memory 800 Pocket Mattress RoomshotHorizon Odyssey Memory 800 Pocket Mattress Undressed RoomshotHorizon Odyssey Memory 800 Pocket Mattress FullHorizon Odyssey Memory 800 Pocket Mattress CornerHorizon Odyssey Memory 800 Pocket Mattress RoomshotHorizon Odyssey Memory 800 Pocket Mattress Undressed Roomshot

Horizon Odyssey 800 Pocket Memory Mattress

Horizon Logo
From£244.95

up to

50% off

Comfort trial

Comfort fillings

Firmness rating

Support system

Journey into comfort with the Odyssey! This cooling, fresh memory foam mattress gives you everything you need for better sleep - at a price you'll love.

Reasons to Buy

Memory Foam
Memory Foam

Memory foam creates a cushioned feel by cradling to your unique shape. Enhancing the remarkable comfort, the foam has a sumptuous feel, delivering a cosy sleep.

Pocket Springs
Pocket Springs

Individualised springs encased in cloth pockets. Expertly adapting to movement to distribute personalised support to each part of your body.

Knitted cover
Knitted cover

A sumptuously soft finish that provides additional cosiness and warmth. Knitted covers enhance airflow and are incredibly breathable. So, you can enjoy a cooler snooze.

Reinforced mattress edge
Reinforced mattress edge

Durable edge-to-edge support provides a maximised sleeping surface for a more secure sleep. Sit and lay comfortably right to the very edge with zero 'roll-off' sensation.

No roll-together
No roll-together

Special design made to create your own personal sleep zone. No distractions or disturbances when your partner moves. So you can enjoy an undisturbed rest.

Pressure relief
Pressure relief

Offering a soothing night's rest by evenly distributing your body weight across the mattress. The pressure point relief provides the ultimate relaxation needed for a deep slumber.

Hypoallergenic
Hypoallergenic

Free of allergens for a cleaner, healthier sleep. No allergenic materials were used so you can enjoy an undisturbed rest without the risk of allergy reactions or respiratory problems.

Medium
Medium

Not too soft, not too firm - the perfect balance

23cm deep
23cm deep

About 9.1 inches deep. Depth is an important factor when buying a mattress as it can affect the suitability for particular bedding, mattress toppers and bed frames.

Single-sided
Single-sided

With a single-sided mattress, there's no need to flip. Simply rotate every few months to care for your mattress. Fuss free mattress maintenance!

Rolled-up
Rolled-up

A rolled-up mattress is efficiently packaged for easy manoeuvring. Because of its smaller, compact design, less delivery vans are needed, providing a great environmentally-friendly option.

Includes turning handles
Includes turning handles

Stitched into the mattress border, turning handles are there for easier moving and turning. When caring for your mattress, simply use the handles provided for ease of use.

5 Year Guarantee
5 Year Guarantee

For your peace of mind

Fire Resistant
Fire Resistant

This product conforms to BS7177: 2008, for use at home

Description

Take an interstellar trip to dreamy sleep with the Horizon Odyssey 800 Pocket Memory Mattress!

Cooler memory foam

The Odyssey is a stunning next-generation hybrid mattress. Thanks to the cooling comfort of graphite-infused memory foam and a built-in airflow system, you'll never overheat. It cleverly wicks away heat and moisture so you'll wake refreshed.

Soothe aches and pains

This 2cm memory layer isn't just cooling, it contours to your body for unique and personalised comfort. This helps relieve pressure on your joints, back and hips. Bliss.

Better support

You'll get support for every area of your body as you nestle into the Odyssey. 800 pocket springs move independently for personalised support. There's no motion transfer either, so you'll get a more peaceful sleep.

Sleep right to the edge

No more fighting for space! This mattress includes built-in edge reinforcement. You'll enjoy maximum space to sleep - and no roll-off.

Just right!

It's not too firm or too soft - the Odyssey is the perfect balance of both. We rate it medium. It's best if you prefer that just-right feel.

Looking for a firmer mattress? Take a look at the Horizon Adventurer!

Clean and healthy

This mattress is hypoallergenic for your peace of mind, and uninterrupted, sneeze-free sleep.

Easy to care for

The Odyssey is super-simple to keep in the great condition you expect. As it's single-sided, all you'll need to do is rotate it every 3 months using the sturdy turning handles provided.

Sustainable design

Your new mattress will arrive rolled-up. That way, we can fit lots more into our delivery vans, and make fewer trips. This means we can reduce our carbon emissions - and protect our precious planet.

Quick set-up

So easy to move around your home, the Odyssey will arrive rolled up. All you need to do is pop it on your bed, unwrap it and allow it to expand. It will be ready to sleep on in 3-4 hours.

Take a trip to dreamland

Experience other-worldly comfort with the Horizon Odyssey 800 Pocket Memory Mattress, and discover better sleep as soon as tomorrow!

Disclaimer: To keep your mattress in perfect condition, you should unroll your mattress within 3 months of it being delivered. This ensures that your new mattress will unroll smoothly and it will keep it clean and fresh.

Benefits

  • Exclusive to Mattress Online
  • A budget-friendly hybrid mattress
  • Featuring next-generation graphite-infused memory foam
  • Graphite-memory is cooling and fresh
  • No overheating! It whisks away heat and moisture
  • In-built airflow system for enhanced breathability
  • Soothing relief for joints and pressure points
  • Rated medium - not too firm or soft
  • 800 individual pocket springs provide top-to-toe support
  • No roll-off! Mattress edges are reinforced with sturdy foam
  • Soft and smooth knitted cover
  • Hypoallergenic for healthier sleep
  • Single-sided for super-easy care
  • Built-in turning handles to help move your mattress
  • Arrives rolled-up - easier to deliver
  • Depth: 23cm
  • 5 Year Guarantee
  • The mattress cover is guaranteed for 12 months

    Weights: Single: 17.5kg, Small Double: 25kg, Double: 26.8kg, King Size: 28.6kg, Superking: 38.1kg

60-Night Comfort Trial

This mattress comes with a 60-Night Comfort Trial - like all of our mattresses!

The trial lets you test your mattress for up to 60 nights. If it's not quite right for you, you can exchange it for a new one.

It can take some time to get used to a new mattress, which is why we ask you to sleep on your mattress for 30 nights. If you're not happy with the feel after 30 nights, simply contact our Customer Service Team, and we'll arrange a mattress exchange.

Click here for more info about our 60-Night Comfort Trial.

Videos

Horizon Odyssey 800 Pocket Memory Mattress

Specification

FirmnessMedium
Comfort fillingsMemory Foam
Support systemPocket Springs
Pocket spring count800
Edge supportYes
CoverKnitted cover
Allergy careHypoallergenic
Pressure reliefYes
No roll-togetherYes
Turning handlesYes
Rolled-upYes
Single-sidedYes
Guarantee5 years
Fire resistanceConforms to BS7177: 2008, for use at home
DownloadsHorizon Product Care and Guarantee

Dimensions

SizeWidthLengthDepth
Single90cm190cm23cm
Small Double120cm190cm23cm
Double135cm190cm23cm
King Size150cm200cm23cm
Superking180cm200cm23cm

Please allow for a tolerance of +/- 2cm

Delivery

The following delivery methods apply to mainland England and most of Scotland, Wales and Northern Ireland. Please read our delivery page for more information.

Next day delivery (weekdays only)

Order before

FREE

Weekday of your choice

Order up to 60 days ahead

FREE

Weekend

On Saturday or Sunday of your choice

£17.50

Delivery to the front door of your building

Free upgrade for Superking to your room of choice

Yes

Two-hour delivery time slot

We’ll let you know on the day before your delivery

Yes

Call to let you know we’re on our way

On your delivery day

Yes

Delivery to your room of choice

Free upgrade for Superking

£20.00

Mattress recycling

We'll take away your old mattress

£35.00

Delivery is on an all-day service, 7am - 8pm for mainland England and most of Scotland, Wales and Northern Ireland.

Need further information? Please visit our Delivery page.

Reviews

4.6/5

out of 156 reviews onTrustpilot logo

Product review stars

Customer Reviews Summary

summarised by AI

5 starsKl
12 January 2026

Verified Purchase

5 starsSharon
23 November 2025

Verified Purchase

4 starsDouglas
26 June 2025

Verified Purchase

5 starsPhillipa
1 June 2025

Verified Purchase

2 starsM R
29 March 2025

Verified Purchase

5 starsTracy
29 March 2025

Verified Purchase

5 starsGeorgia
14 January 2025

Verified Purchase

5 starsPhilip
1 January 2025

Verified Purchase

3 starsAvril
29 December 2024

Verified Purchase

5 starsRobert
16 December 2024

Verified Purchase

prev

1

Mattress Online Logo