up to
50% off
Free delivery

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.

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.

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

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.

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.

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.

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.

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.
Not too soft, not too firm - the perfect balance

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.

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!

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.

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.

For your peace of mind

This product conforms to BS7177: 2008, for use at home
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.
Weights: Single: 17.5kg, Small Double: 25kg, Double: 26.8kg, King Size: 28.6kg, Superking: 38.1kg
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.
| Firmness | Medium |
| Comfort fillings | Memory Foam |
| Support system | Pocket Springs |
| Pocket spring count | 800 |
| Edge support | Yes |
| Cover | Knitted cover |
| Allergy care | Hypoallergenic |
| Pressure relief | Yes |
| No roll-together | Yes |
| Turning handles | Yes |
| Rolled-up | Yes |
| Single-sided | Yes |
| Guarantee | 5 years |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Downloads | Horizon Product Care and Guarantee |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 23cm |
| Small Double | 120cm | 190cm | 23cm |
| Double | 135cm | 190cm | 23cm |
| King Size | 150cm | 200cm | 23cm |
| Superking | 180cm | 200cm | 23cm |
Please allow for a tolerance of +/- 2cm
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.
A balanced snapshot of what customers love (and what they don't), generated by AI.
The person it was bought for is very happy with how comfortable it is. They have had very good sleep since getting it. Arrives in a compressed roll, get it in place before unwrapping. The take away option for the old mattress is very useful too. Delivery tracking means you can tell how many stops before they get to you and where they currently are on a map.
Verified Purchase
Bought for 5 year old child. Comes in a vaccum wrapping. Couldn't believe it would expand, to full size. But it did. He loves his new bed, and sleeps well on the mattress. Mattress depth fits standard fitted sheets.
Verified Purchase
The medium is pretty comfy
Verified Purchase
We already have a horizon mattress which we love so bought this single matress for my daughter. All good so far.
Verified Purchase
Mattress is too long and overlaps the base. Not a good look.
Verified Purchase
It's for my son who is very pleased with it, no annoying springs, he's 6.5ft tall and 11 stone & finds it very comfy. My other son wants one too now, so I will be ordering again. Great value I was pleasantly surprised with my purchase.
Verified Purchase
Excellent comfy mattress at a good price
Verified Purchase
Great. Great. 12 more characters
Verified Purchase
not what I expected, dddddidn't like the smell,, it hasn't helped my sore back and I'm not sleeping well on it.
Verified Purchase
Great mattress - we have 5 for the whole family
Verified Purchase
1
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 09:30am - 17:30pm
Sunday: Closed
customerservice@mattressonline.co.uk