A super king mattress is the largest standard size available in the UK, and for couples who have made the decision to invest in maximum sleeping space, it changes things noticeably. At Land of Beds, we've been helping people across the UK find the right mattress for over 50 years. Whether you want a single super king pocket spring with natural fillings for temperature management, a hybrid that gives both of you pressure relief without sacrificing airflow, a zip-and-link with two different tensions for partners who sleep best at different firmnesses, or a handcrafted luxury mattress from Hypnos or Vispring built for 15 years of use, our super king range covers it all. Free mainland UK delivery, a Price Promise Guarantee, and honest advice come as standard.
Browse the full range below, or use our guides to find the right construction, tension, and zip-and-link option for both of you. Our team is available seven days a week for a personal recommendation.
Most people buying a super king mattress have made the decision. The room takes it, they want the space, and they're not going backwards. What they're working through is whether to go with a single super king mattress or a zip-and-link, which construction suits both of them, and which brands are worth the investment at this size. At Land of Beds, we've been helping couples work through exactly this for over 50 years, with honest advice and no pressure to buy.
Three things determine whether you end up with the right super king mattress. Get these right and the rest of the decision becomes straightforward.
| Factor | Why It Matters | What to Check |
|---|---|---|
| Single mattress or zip-and-link | A zip-and-link is two separate mattresses joined together with a zip. It allows two people to have different tensions on each side of the same bed. At super king size, this option is more widely available than at any other size - and more commonly needed, because the couples buying super kings often have a meaningful weight or preference difference. | Whether both partners sleep best at the same tension; the weight difference between partners; whether motion isolation is particularly important |
| Construction for two | A super king is almost always shared. Construction determines how well it manages two different body temperatures, how much movement carries across, and how well it performs under two daily users over many years. | Pocket spring vs hybrid vs foam; natural fillings for temperature management at this size |
| Room suitability | A super king needs proper clearance to work in a room. Too tight and the size advantage is lost in a cramped layout. | Room width (ideally 4.0m or above), clearance on both sides of the bed, access to drawers or ottoman storage if applicable |
Not sure whether to go single super king or zip-and-link? Call our team on 01928 242829 - this is one of the more nuanced decisions in this category and we can advise based on your specific situation.
A standard UK super king mattress measures 180 x 200cm (6ft x 6ft 6in). This is the widest standard mattress size available in the UK.
| Dimension | Measurement | Notes |
|---|---|---|
| Width | 180cm (6ft) | Gives two adults approximately 90cm each - similar to a single bed per person |
| Length | 200cm (6ft 6in) | The same length as a king size. Suits sleepers up to approximately 6ft 3in. |
| Zip-and-link width | 2 x 90cm joined | Each mattress is single-sized; zipped together they make the full 180cm super king |
| Typical depth | 25 to 45cm | Depth varies by construction. What matters is material quality, not depth alone. |
A super king gives each partner approximately 90cm of personal space - roughly equivalent to a single bed each. For couples where one or both partners are restless sleepers, this reduction in shared space is often the most significant sleep improvement they experience.
If your room is under 3.5m wide, check that a super king leaves comfortable clearance before ordering. See our UK Bed Sizes Guide for full room-measuring guidance.
At super king size, construction and zip-and-link options are the primary variables. Here's a plain comparison of every type we stock.
| Type | Key Features | Best For |
|---|---|---|
| Pocket Spring | Individual springs move independently; natural airflow; filling layers on top; responsive feel | Couples wanting minimal motion transfer; hot sleepers; traditional feel with modern engineering |
| Memory Foam | Contours closely; pressure relief; absorbs movement; can retain heat unless gel-infused | Couples where both sleep still; those with significant pressure point discomfort |
| Hybrid | Pocket springs with foam or latex on top; combines airflow and edge support with pressure relief | The strongest all-round choice for most couples at this size |
| Latex | Naturally responsive, breathable, hypoallergenic; durable and long-lasting | Hot sleepers; allergy-sensitive buyers; those wanting natural materials |
| Luxury / Handcrafted | Natural fillings (wool, cashmere, cotton, silk, horsehair); hand-tufted; made by hand; from Hypnos, Vispring, Harrison Spinks | Long-term investment; those buying a mattress to match a premium bed frame or divan base |
| Zip-and-Link | Two single-sized mattresses of the same or different tensions, joined by a zip along one side | Couples with different tension preferences; significant weight differences between partners |
Choose a single super king pocket spring if:
Choose a single super king hybrid if:
Choose a zip-and-link super king if:
Choose a luxury or handcrafted super king if:
The most common thing our team hears from super king buyers is that they delayed the purchase longer than they should have. The question we hear most after they've had it for three months is why they didn't do it sooner.
Zip-and-link is a super king option that no other size page covers in detail, because it's most practical and most available at super king.
A zip-and-link super king consists of two single mattresses (90 x 200cm each) that are joined together with a zip along their shared edge. Each half can be a different tension, allowing two people with different sleep preferences or body weights to each have the right support on their side.
When zip-and-link is the right choice:
When a single super king mattress is the better choice:
Ask our team which brands in our range offer zip-and-link in super king size, and what tension combinations are available.
For a single super king, tension still needs to account for both partners. For a zip-and-link, each side is chosen independently.
| Tension | Best For | What It Does |
|---|---|---|
| Soft | Lighter sleepers under 60kg; side sleepers needing significant pressure relief | Excellent pressure relief; may feel unsupportive for a heavier partner if sharing one mattress |
| Medium Soft | Couples where both are lighter builds; side sleepers | Balances cushioning and support; suits most lighter couples |
| Medium | The most popular tension for couples at this size; combined weight 130 to 185kg | Good all-round support across two body weights; enough cushioning for combination sleepers |
| Medium Firm | Couples where one or both are heavier; back and front sleepers | Firmer support for alignment; suits couples where the heavier partner needs more support |
| Firm | Heavier individuals over 100kg; front sleepers; those needing maximum spinal support | Minimal sink; strong support; may feel too hard for a lighter partner if sharing one mattress |
For a zip-and-link, each half can be a different tension entirely. Common combinations are medium and firm, or medium soft and medium. Call our team for specific guidance.
At super king size, the quality of materials matters more than at any other size because the investment is larger and the expected lifespan longer.
| Material | Performance and Maintenance | Best For |
|---|---|---|
| Pocket Springs | Independent spring movement reduces partner disturbance. Higher spring counts mean more responsive support per person. At super king, spring count per person is the more relevant figure than total count. | Couples; hot sleepers; everyday main bedroom use |
| Natural Fillings (wool, cotton, cashmere, silk) | Breathable and temperature-regulating year-round. Particularly valuable at super king size where two bodies generate significant heat overnight. Signature feature of brands like Hypnos and Vispring. | Temperature-sensitive couples; long-term investment buyers; natural material preference |
| Memory Foam | Pressure-relieving. Can retain heat - more relevant at super king where two bodies use the surface. Gel-infused versions manage temperature better. | Still couples prioritising pressure relief |
| Latex | Naturally breathable, responsive, hypoallergenic. Longer lifespan. Heavier than foam. | Hot sleepers; allergy-sensitive buyers |
| Horsehair and Luxury Fillings | Found in top-tier handcrafted mattresses from Vispring and others. Naturally resilient, breathable, and exceptionally long-lasting. | Luxury buyers; those making a 15 to 20 year investment |
See our Mattress Buying Guide for more detail on how materials affect long-term performance.
A super king is almost always a main bedroom mattress used every night by two people. It's one of the highest-use items in the home. Budget should reflect that.
| Budget | What You Get | Best For |
|---|---|---|
| Under £500 | Entry-level pocket spring or foam at super king size. Functional for lighter use. Shorter lifespan under daily use by two people at this size. | Guest rooms; occasional-use super king bedrooms |
| £500 to £899 | Better construction, improved comfort layers, more tension choice, improved durability for two daily users. | Couples wanting the size upgrade without a premium price |
| £900 to £1,499 | Natural filling options, longer guarantees, stronger edge support, better long-term performance. Where most everyday super king main bedroom buyers land. | Main bedroom super king used nightly by two people |
| £1,500 and above | Premium and handcrafted natural fillings from Hypnos, Vispring, Harrison Spinks. Extended guarantees. Built to last 10 to 20 years under two daily users. | Long-term investment; those buying alongside a premium divan base or bed frame |
The quality gap between a budget and mid-range super king mattress is more pronounced than at smaller sizes. At this footprint, under daily use by two people, the materials need to perform at a higher level for longer.
Mike Murray, Land of Beds CEO: "Super king is where we see the most variation in what people actually need. Some couples just want the space and a solid mid-range construction will serve them well for years. Others have been sleeping on the wrong tension for a decade and need a zip-and-link. And some are making a genuine long-term investment and want the best natural materials available. The starting point is always the same conversation: how do both of you sleep?"
Looking for a quality super king mattress at a lower price? We stock entry-level options in super king size with regular promotions throughout the year. Browse and filter by price to see what's currently available.
Our Price Promise Guarantee means you won't pay more than you should. Finance is available on eligible orders, with interest-free options on selected terms. See our finance page for details.
If you're deciding between super king and king, here's a plain comparison.
| Super King Mattress | King Size Mattress | |
|---|---|---|
| Dimensions | 180 x 200cm (6ft x 6ft 6in) | 150 x 200cm (5ft x 6ft 6in) |
| Space per person | Approximately 90cm each | Approximately 75cm each |
| Room requirement | Ideally 4.0m+ wide with good clearance | Minimum around 3.0m wide |
| Zip-and-link | Widely available at this size | Less common at king size |
| Best for | Larger rooms; restless sleepers; couples needing different tensions | Standard main bedrooms; couples wanting more space than a double |
If your room comfortably takes a super king, it is worth the upgrade. If the room is tight, a king in the right construction often does more for sleep quality than a super king squeezed into a space it doesn't fit properly. See our king size mattresses.
| Item | Typically Included? |
|---|---|
| Mattress | Yes - always (one super king mattress, or two singles if zip-and-link) |
| Zip connector | Yes - included with zip-and-link sets |
| Removable, washable cover | Sometimes - check the individual product listing |
| Trial period | On selected models only - check before ordering |
| Bed base or frame | No - unless part of a bundle or divan set |
| Mattress protector | No - sold separately and strongly recommended at this price point |
Always check the individual product listing for full details before purchasing. Zip-and-link sets may have specific fitting requirements for your bed frame.
| What We Offer | Why It Matters to You |
|---|---|
| 50+ years of expertise | Deep knowledge of super king mattresses including zip-and-link, luxury constructions, and couple-specific tension advice |
| Genuinely independent advice | We're not tied to any brand. Our recommendation is based on how both of you sleep and what your room can take. |
| Leading brands at this size | From entry-level to luxury from Hypnos, Vispring, Harrison Spinks, and Tempur |
| Free mainland UK delivery | Free on orders over £100. Some remote postcodes may incur a charge. |
| Price Promise Guarantee | Find it cheaper like-for-like elsewhere and we'll match it |
| Flexible finance available | Interest-free options on selected terms - see our finance page |
| Expert advice, 7 days a week | Real people via phone, chat, or in-store. No scripts, no pressure. |
| 9,000+ verified Trustpilot reviews | Real feedback from real customers on products, advice, and service |
Choosing a super king mattress - and deciding between a single super king and a zip-and-link - is one of the more involved conversations in this category. Our team has helped thousands of couples work through it, and there's no obligation to buy. Visit our showrooms in Cheshire and Greater Manchester to try super king mattresses in person, or reach us online. We're open seven days a week.
| How to Reach Us | What to Expect |
|---|---|
| Live chat | Fast responses for quick questions. Available during opening hours. |
| Phone: 01928 242829 | Speak directly with a mattress expert. Best for zip-and-link guidance and tension advice for two people. |
| In-store (Cheshire / Greater Manchester) | Try super king mattresses in person before committing. The scale and feel of this size is best judged in person. |
| Email: [email protected] | For non-urgent questions. We aim to respond within one working day. |
| Help Centre | Buying guides, size guides, and FAQs available 24/7. |
| Question | Answer |
|---|---|
| What size is a super king mattress in the UK? | A standard UK super king mattress measures 180cm wide by 200cm long (6ft x 6ft 6in). This is 30cm wider than a king size mattress and the widest standard mattress size available in the UK. It gives two adults approximately 90cm of personal space each. |
| Is a super king mattress worth it? | For couples in a room that takes it comfortably, yes - almost without exception. The extra 30cm of width over a king gives each partner roughly 90cm compared to 75cm, which is close to a single bed per person. Most couples who make the upgrade report a clear improvement in how much they disturb each other during the night. The room needs to be measured first. |
| What is a zip-and-link super king mattress? | A zip-and-link is two single mattresses (90 x 200cm each) joined together by a zip along their shared edge. Each half can be a different tension, allowing two people to have the right support on their side. It's the most practical solution when two partners have meaningfully different weights or tension preferences. The zip can also be undone to separate the mattresses into two singles if needed. |
| Do I need a zip-and-link super king mattress? | Only if you and your partner have different tension needs. If the weight difference between you is more than 20 to 25kg, or if one of you consistently sleeps better on a firmer or softer surface, zip-and-link is worth considering. If you're broadly happy with the same tension, a single super king mattress is simpler and has no join across the sleeping surface. |
| What is the best super king mattress for couples? | For most couples, a pocket spring or hybrid super king gives the best combination of independent spring movement, airflow, and durability under two daily users. Natural fillings (wool, cotton) on top of a pocket spring base improve temperature regulation significantly when two bodies are generating heat overnight. For couples with different tension needs, a zip-and-link is the strongest option. |
| What tension should I choose for a super king mattress? | For a single super king, choose based on the heavier or more movement-sensitive partner. Medium suits most couples where both are in the 70 to 90kg range. If there's a significant weight difference, ask about zip-and-link options where each side has a different tension. |
| How long should a super king mattress last? | A quality mid-range super king used every night by two people should last 8 to 10 years. Premium handcrafted mattresses from brands like Hypnos and Vispring, with natural fillings, are built to last 10 to 15 years or more with proper care. Using a mattress protector and rotating as recommended both extend the lifespan. |
| Does a super king mattress fit a standard super king bed frame? | Yes - a standard UK super king mattress (180 x 200cm) fits all standard UK super king bed frames. For zip-and-link mattresses, check that your base supports two separate mattresses joined together. Divan super king bases are often sold as two separate halves, which suits zip-and-link well. |
| Do you offer free delivery on super king mattresses? | Yes. Free mainland UK delivery on orders over £100. Some remote postcodes may incur a charge - check at checkout. Lead times vary by brand; check the individual product listing. |
| Can I buy a super king mattress on finance? | Yes. Finance is available on eligible orders, with interest-free options on selected terms. See our finance page for eligibility and how to apply. |
| What room size do I need for a super king? | A super king mattress is 180cm wide. The bed frame will be slightly wider. To allow comfortable clearance on both sides for access and making the bed, a room width of at least 3.5m is recommended, with 4.0m or above being more comfortable. Measure carefully and consider the position of doors, wardrobes, and radiators before ordering. |
