Rated Excellent on Trustpilot
Free delivery
60-night sleep trial
Komfi Rhea Natural Graduate Mattress
Free delivery from Sat, 20th Jun, 2026
- It will be made especially for you, so delivery will be on a date of your choice once it is made. Choose a delivery date at checkout.
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 Komfi Rhea Natural Graduate Mattress employs natural fillings and exclusive EcoAdvance foam to gently relieve body tension while you sleep. The Natural Graduate mattress is both comfortable and supportive, as well as easy to care for and lightweight, making it ideal for bunk beds and high sleepers.
The Rhea Natural Graduate mattress is supported by Komfi's unique, 100% recycled, and recyclable EcoFoam material. As a base layer, EcoFoam provides secure, long-lasting support without harming the environment during the manufacturing process.
The top layer is made up of luxurious natural layers of wool, silk, and cashmere for extra comfort. Pressure relief is provided by a sustainable EcoAdvance layer. This layer is a gentler alternative to memory foam that is extra-breathable, providing all of the pressure-relieving, soothing qualities of foam without the heat retention commonly associated with foam, as well as a lower carbon footprint.
For a cleaner, healthier sleep, the Natural Graduate is finished in a hypoallergenic, probiotic Purotex cover. This Rhea mattress does not require turning.
This mattress is 15cm deep and extremely light, making it an excellent choice for a bunk bed or high sleeper bed.
MyNextMattress will deliver the Komfi Rhea Natural Graduate to you for free (offshore charges apply), vacuum packed and rolled for convenience. The Natural Graduate is built to last and comes with a 10-year warranty from Komfi.
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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.
30 Years of Expertise
Expert Customer Support
Flexible Payment Plans
350K+ Mattresses Sold
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!
