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NanoSleep Core 800

NanoSleep Core 800

£390.95 GBP
£390.95 GBP
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Orders between £12 and £5999

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12
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£ 32.58
Instalment Amount
£ 17.77 x 12

British-made. Hand-crafted. Built to last.


From Nanosleeps advanced foam mattresses-in-a-box to our hand-stitched pocket-sprung designs — every mattress is made to deliver deeper sleep, lasting comfort, and everyday luxury.


Crafted for Comfort. Designed for Life.


Sleep on it for 60 nights — if you don’t love it, we’ll take it back. No stress, no compromise.

Product Description

Premium Comfort, Entry-Level Price

Formerly known as the Elite Mattress, the Core 800 is our most accessible mattress — without compromising on innovation or performance.

Powered by our signature AirGrid technology, it delivers a unique, weightless sensation with enhanced pressure relief and superior breathability. Whether you sleep on your back, side, or stomach, the Core 800 instantly adapts to your body, offering balanced support and a consistently cool sleep experience.

✔ AirGrid comfort layer for a cooling, cradling effect
✔ Pressure-relieving design for that "floating" feel
✔ Adaptive support for every sleep style
✔ Breathable structure to regulate temperature all night long

Your best sleep starts here — without breaking the bank.

Dimensions

Care

Your mattress has been designed for lasting comfort and includes a built-in protector to help maintain hygiene and extend its lifespan. Follow the guidance below to keep it in the best condition.

General Care


  • Use with a suitable bed frame or base: Always place your mattress on a sturdy, well-ventilated base to ensure proper support.

  • Let it breathe: When changing your bedding, leave the mattress uncovered for a short time to allow airflow and prevent moisture build-up.

  • Avoid sitting on edges: Consistently sitting on the same area can cause uneven wear. Try to distribute weight evenly across the surface.

Cleaning & Maintenance


  • Vacuum lightly using a soft brush attachment from time to time to remove dust and allergens.

  • For marks or spills, wipe gently with a damp cloth and mild detergent. Avoid over-wetting or using harsh cleaning products.

  • If the mattress becomes damp, allow it to air dry completely before placing bedding back on.

Additional Tips


  • Do not bend or fold the mattress as this can damage its internal structure.

  • Keep away from direct sunlight or heat sources to prevent fabric fading or warping.

  • Retain the sewn-on care label for future reference, as it contains important cleaning and warranty details.

Handcrafted in the UK

At OPA Living, we believe great sleep should be crafted with care. That’s why our mattresses are made by hand — combining innovative foam technology with traditional pocket-spring craftsmanship to deliver comfort, support, and longevity.

Every mattress is carefully built in the UK using premium, responsibly sourced materials and advanced sleep engineering. From breathable hybrid layers to pressure-relieving foam and hand-stitched pocket springs, we design for comfort that lasts — not compromises.

By manufacturing locally, we reduce our carbon footprint, support British mattress artisans, and ensure every stitch meets the highest standards. With thoughtful construction, durable components, and a focus on long-term wellbeing, our mattresses are designed to support your body — and the planet — night after night.

Sleep better. Live better. Crafted for comfort, built to last.

10 Year Guarantee

Every OPA Living mattress is handcrafted in the UK using premium materials, engineered for lasting comfort and durability. We’re so confident in our craftsmanship that we back every mattress with a full 10-year guarantee — protecting you against manufacturing or material faults for a decade of worry-free sleep.

Delivery Estimates

Standard Delivery
Free for orders over £2,500
14th Dec - 28th Dec
4-6 weeks
Express Delivery
Priority manufacture and delivery
30th Nov - 7th Dec
2-3 weeks
* Delivery times are estimates and may vary based on location

Unsure which mattress to choose?


Our friendly sleep specialists are here to help. Get honest, expert advice tailored to your sleep style, comfort preferences, and budget — so you can choose your perfect mattress with confidence.

👉 Chat with a Sleep Specialist

View full details

Match made in bedroom heaven.

Premium Bed Frames

Starting at £899

Bed Bases

Starting at £479

New Headboards

Starting at £579

New Scatter Cushions

Starting at £49

GOT QUESTIONS?

Our friendly Sleep specialists are here to help. Give us a call today or visit our OPA HQ.

Book A Video Call

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Order FAQ's

How do I place an order with OPA Living?

Simply select your product, choose your preferred size and fabric, and add it to your cart. You can then checkout online, or if you’d like assistance, our sales team is available by phone, video call, or in-store at our Flagship Chelsea or Yorkshire showrooms.

Can I order fabric swatches before buying?

Yes. We offer a complimentary swatch service with over 100+ fabrics to choose from. Order samples online to see colours and textures in your own home before making your final decision.

How long will my order take to arrive?

Lead times vary depending on your chosen product and fabric. Most made-to-order sofas and beds are delivered within 3-4 weeks, while in-stock items may arrive sooner. At checkout, you’ll see estimated delivery times for your order.

Can I change or cancel my order?

Orders may be changed or cancelled within 24 hours of confirmation. After this time, production begins, and changes may not be possible. Please contact our team as soon as possible if you need assistance.

What payment options do you offer?

We accept all major credit and debit cards, Klarna, PayItMonthly, and DivideBuy, giving you the option to spread the cost over flexible instalments.

Do you offer made-to-measure furniture?

Yes. At OPA Living, many of our sofas and beds can be tailored to your exact requirements. From custom dimensions and modular layouts to over 100+ premium fabrics, we offer bespoke solutions designed to fit your space perfectly. Speak with our design team to explore your made-to-measure options.

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