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Sandringham

Sandringham

Our 1200 pocket sprung, hand-tufted mattress – the perfect choice for your master bedroom
Firmness: Medium
Size
£429
£429
FREE Doorstep Delivery
Handmade to order and delivered by 13th September
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Sizing

All sizes are shown as width x length (W x L).

If your size isn't available to select, please contact us for a quote.
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Add Zip & link?
Zip & link is a great option to produce two separate mattresses, that can be joined together to make one larger mattress. The two can be joined together with a zip, usually placed near the base and top of the mattresses to ensure they're extra secure.

This comes in handy when transporting the mattress through tight spaces. It is also useful when a mattress could be required to split for twin beds, or our guest beds, which could then be used separately or joined together.
  • No time to waste

    Mattresses shouldn't come in a box. Our thick, supportive, luxury mattresses will arrive ready to sleep on straight away

  • Handcrafted

    Made by hand in Britain, featuring multiple layers thoughtfully designed using locally sourced, quality materials

  • Guarantee

    A 5 year limited guarantee on all mattresses and up to 10 years guarantee on our premium mattresses

About this mattress

Introducing the meticulously handcrafted Sandringham mattress, featuring an indulgent 1,200 individual pocket springs in a plush soft pocket design, complemented by three layers of traditional fillings.

At the heart of our commitment to quality, the Sandringham mattress is constructed the right way – without compromise. Deep cotton fillings on both sides of the pocket spring system allow for full turning and rotation, ensuring enduring, restful sleep night after night for many years.

The Sandringham, ideal for the master bedroom, guarantees the correct level of support, leaving you waking up feeling truly rested and refreshed.

Tailored to your specific needs, the Sandringham is available as a bespoke size mattress, offering a personalised touch, or crafted to standard sizes. This tufted mattress is elegantly finished with a quality damask cover, completing the exquisite design of the Sandringham for a truly luxurious sleep experience.

  • Pocket Spring
  • White Sumptuous Fibre
  • Tufted
  • Damask
  • Rebound Cotton

Delivery

We either deliver ourselves or use one of our trusted delivery partners to get your order to you safely.

Orders will be delivered on or before the date shown when ordering, although if you need it sooner, or on a specific date, please get in touch with us prior to ordering. We can give you a guaranteed delivery date prior to ordering and if required, we can also offer a fast track upgrade.

Moving home? One less thing to worry about - we can hold your order until you're ready for it, for no extra charge.

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You are responsible for ensuring beds and mattresses can be delivered to the required location, please ensure all doorways and access points have been measured. If you are unsure, please contact us, we can offer split bases and also zip link mattresses to help with transportation

Returns

You have 24 hours after ordering to change or cancel your order. After this time, we do not accept returns due to all our products being custom made to order.

Should a product be faulty or incorrect, we will repair or replace free of charge to make it right.

Details & Specification

Border Depth 10"
Type Pocket Sprung
Spring Count 1200
Finish Tufted Finish
Guarantee 5 years

Customer Reviews

Based on 2 reviews
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Jo
Delighted!

After purchasing an Ottoman bed from Gemini Sleep we decided to invest in a new mattress too as the service had been so good previously. Gemini did not disappoint ! They were really helpful in signposting us to the correct mattress (as I have a bad back) for our requirements. The Sandringham is perfect. Premium product and my back feels much better already for being properly supported.
Thank you again Gemini- will definitely be purchasing again soon!

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N
Nathan K
Really pleased although a bit firmer than expected

The quality of this mattress is fantastic, although it’s a bit firmer than we expected from a medium mattress, it has softened over the last few weeks of using, we actually prefer it! Was delivered along with our ottoman bed, delivery guys were really helpful getting this into the bedroom and set up for us, would definitely recommend Gemini in the future (and so would our dog!)

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Frequently Asked Questions

What is the difference between open coil and pocket sprung mattresses?

Open coil mattresses use a single continuous wire or linked springs throughout the mattress. While this offers basic support, movement on one side tends to transfer across the entire surface.

Pocket sprung mattresses, on the other hand, feature individual springs housed in fabric pockets. Each spring moves independently, offering superior support, reduced motion transfer, and better contouring to your body.

At Gemini Sleep, we craft all our pocket sprung mattresses for optimal comfort, durability, and a more personalised sleep experience.

What does spring count mean?

Spring count refers to the number of individual springs inside a pocket sprung mattress - usually measured based on a standard king size (150 x 200 cm).

Generally, a higher spring count means more individual support points, allowing the mattress to contour more precisely to your body and minimise motion transfer.

At Gemini Sleep, we carefully select spring counts to balance comfort, durability, and support. It’s not just about numbers - it’s about how the mattress feels and performs as a whole.

Here’s a quick guide:

  • Up to 1,000 springs – Standard support, suitable for occasional use or lighter sleepers
  • 1,000–2,000 springs – Enhanced comfort and support, ideal for most sleepers
  • 2,000+ springs – Precision support and luxury feel, great for couples and those seeking superior pressure relief

Which mattress firmness is right for me?

Firmness is a personal preference, but it also depends on how you sleep.

  • Soft to Medium: Ideal for side sleepers or those who prefer a more cushioned feel, allowing shoulders and hips to sink in comfortably.
  • Medium to Firm: A balanced feel that suits most sleepers, especially those who change positions throughout the night.
  • Firm to Extra Firm: Best for back or stomach sleepers, or those needing extra support, particularly for spinal alignment.

At Gemini Sleep, our curated range ensures each firmness level combines handcrafted comfort with considered support.

How do I care for my mattress to keep it in the best condition?

To prolong the life and comfort of your Gemini Sleep mattress:

  • Rotate regularly: Every 3–6 months, rotate head-to-toe to promote even wear.
  • Use a breathable mattress protector: This keeps the surface clean and guards against moisture and spills.
  • Let it breathe: Occasionally airing out your mattress helps release trapped moisture and maintain freshness.
  • Support matters: Ensure your mattress is placed on a sturdy, ventilated base to support its structure and airflow.

Each Gemini Sleep mattress is crafted to last—proper care ensures it performs beautifully for years to come.

Are your mattresses suitable for all bed bases?

Yes - all Gemini Sleep mattresses are compatible with any type of bed base, including slatted, divan, ottoman, and adjustable frames.

For optimal performance and support, we recommend using a solid base. Solid surfaces provide consistent support across the entire mattress, helping maintain its structure and prolonging its lifespan.

Do your mattresses come with a guarantee?

Yes, all Gemini Sleep mattresses come with either a 5 or 10 year guarantee. We stand by the quality of our craftsmanship and materials, ensuring peace of mind with every purchase.

Can I use a mattress topper with your mattresses?

Absolutely. Mattress toppers can be used with any Gemini Sleep mattress to fine-tune the feel to your personal preference. Whether you’re seeking extra plushness or a layer of cooling comfort, a quality topper can enhance your sleep experience.

Do you offer custom sizes?

Yes - we specialise in bespoke sizing. Whether you need an extra-long mattress, something narrower for a specific space, or a completely custom shape for a boat, camper van, or antique bed frame, we can make it.

Every Gemini Sleep mattress is handcrafted to order, so your perfect fit is just a conversation away.

Is there a break-in period for a new mattress?

Yes. Like a high-quality pair of shoes, your mattress may take a little time to settle.

It’s normal for the fillings to compress slightly during the first few weeks as they adapt to your body. After this natural adjustment period, you’ll experience the full comfort and support your Gemini Sleep mattress is designed to deliver.