Harrison Helsinki 8400 Mattress
Free delivery from tomorrow
- Order in next 14hrs 29mins - area specific
Choose your delivery date at Checkout!
- We deliver on the day of your choice.
- Recycling of your old mattress can be chosen at the checkout.
Mattresses & Beds
- 2-3hr time window the day prior to delivery.
- Live tracking & 30mins notice.
- Delivery to the room of choice, unpack option can be chosen in checkout.
Pillows & Rolled Mattresses
- 1hr delivery slot.
- Delivery to the door.
Delivery Pricing Zones
We want you to have peace of mind when choosing your new mattress. Our {{sleep_trial_adjective}} Sleep Trial allows you to use the mattress, not happy - we'll swap it for you!
How it works?
- Use a new mattress protector (add one to your order).
- Sleep on it for at least 30 nights.
- Not perfect? Tell us before {{sleep_trial_time_point}} and we’ll swap it for any other mattress on our site.
- We deliver the new one and collect the old one on the same day – zero hassle.
We’ll collect your old mattress or bed and take it away for responsible recycling.
Add service here or at the checkout
Removal & Recycling
Please note: beds will need to be dismantled prior to our arrival.
£39.00
What will we do with your old bed/mattress?
We will do one of three things:
- A local charity may want it. We have given them many items in the last year
- We may recycle the mattress
- Some mattresses cannot be recycled, and so we use a local disposal service to take care of the goods.
Product Description
The Harrison Helsinki 8400 mattress is a new addition to the stunning Harrison Collection. Designed and hand-built with only the highest levels of quality and attention to detail, this mattress is absolute luxury and will not only provide exquisite comfort and support but will also stand the test of time. Each Harrison mattress is made over a period of several days by the experienced craftsmen and women at the Harrison farm factory in Yorkshire.
Boasting 8400 Pocket Springs, this mattress offers support and comfort that few others can provide. Each spring is designed to move up and down like a piston as weight is applied, conforming to the contours of the body instantly and effortlessly. The support is exactly as it should be, preventing pressure points from forming and so stopping aches and pains, as well as enhancing good posture throughout the night.
The 8400 springs are placed in two layers, one layer of 3400 supportive springs, and one layer of 5000 Cortec springs, which are smaller and more refined, designed for a wonderfully comfortable and 'light' feel. This Harrison mattress is available in a choice of firmness levels, (Soft, Medium and Firm) and this is controlled by the density of the fillings and the strength of the wire used in the springs.
This range of new Harrison mattress is using the new Cortec Spring System for the first time. This revolutionary spring is a first for any bed maker. The Cortec technology designed to offer the support and comfort you'd expect from a Harrison mattress, but for the first time, the springs can be 100% recycled. Cortec is glue-free, no chemicals and a totally 'green' construction for the first time. These new springs also feature a smaller, finer, more tightly coiled spring, with more individual points of contact for greater contour accuracy and precision.
Packed full of natural fillings, Harrison has hand-applied layers of fillings to the Helsinki, which include Wool Viscose Blend, Wool, Flax Blend, Cotton, Hemp & Mohair Blend. Harrison is the only supplier to source Wool from their own farm, and so quality is absolutely assured. The fillings are breathable, natural and heat-sensitive - keeping you cool in the summer and warm in the winter.
Finished in a silky-smooth and very tactile cover, the Harrison Helsinki mattress is also hand-tufted, ensuring the fillings remain in place at all times as well as aiding the consistency of the tension and firmness of the mattress. There are handles for easy movement, although this is a no-turn mattress, only requiring rotation once per season (although we recommend doing so more often in the first few weeks after delivery).
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10 Year Guarantee
This item is completely covered for the 10-Years.
Any faults reported in the Guarantee period will result in a replacement for you at no cost whatsoever, pending confirmation of the fault by the manufacturer.
At MyNextMattress, we also go a step further and will offer you the choice of any item on our website, not just a like for like replacement from the same manufacturer. We will also exchange the goods for you at no charge (some offshore delivery costs may apply).
Think you have a fault or defect with your item? Please get in touch and we will respond straight away with the next steps.
Guarantees


10 Year Guarantee
This item is completely covered for the 10-Years.
Any faults reported in the Guarantee period will result in a replacement for you, pending confirmation of the fault by the manufacturer. A like-for-like replacement will be offered. This could mean costs are applicable if the replacement newer model is more expensive.
At MyNextMattress, we also go a step further and will offer you the choice of any item on our website, not just a like-for-like replacement from the same manufacturer. We will also cover the delivery costs of the exchange for you at no charge (some offshore delivery costs may apply).
Think you have a fault or defect with your item? Please get in touch and we will respond straight away with the next steps.
Price Match Promise
If you find a better price, we will beat it by £5.
In the unlikely event that you find a price better than ours, worry not - we'll beat it!
This promise extends from pre-ordering right up to the day of delivery!
We watch our competitors prices and pride ourselves on being the most competitive online. Therefore, if you don't have the time to hunt around for the best price, order with us and we'll honour our price match promise until you have taken delivery of your order. This leaves you safe in the knowledge that you will take delivery as fast as possible, for the lowest price possible!
Also, we do genuinely like to know if our prices are being beaten, so please let us know!






