Zinus Mattress Buying Guide: Models, Sizes and How to Save

A Zinus mattress is one of the cheapest ways to get a decent bed-in-a-box: the all-foam Green Tea models suit side sleepers and couples on a budget, while the hybrids add springs for more bounce, airflow and edge support. The catch is that the range, sizes and returns rules differ between the US site, the UK site and third-party sellers like Amazon, so you need to check the details before you order. This guide compares the models, explains sizes and heights for UK and US buyers, sets out the trial and warranty rules, and shows you how to pay less.

Is a Zinus mattress any good?

For the price, most reviewers say yes. Zinus built its name on low-cost compressed mattresses sold online, and its Green Tea range regularly appears in "best cheap mattress" lists. It is not trying to compete with premium hotel-style beds, and you shouldn't expect that level of support or durability.

Tom's Guide's review of the Original Green Tea Memory Foam, updated in January 2026, called it an excellent budget option, especially for side sleepers who want pressure relief. It praised the motion isolation and value, but flagged weak edge support, a tendency to sleep warm and limited suitability for stomach sleepers.

That is a fair summary of the brand as a whole. A Zinus mattress makes most sense when the budget is tight, when it's for a guest room, student flat, child's room or first home, or when you want a stopgap while you save for something better.

What makes a Zinus mattress different?

Most Zinus mattresses share a few traits. They're made from foam (or foam plus springs), they arrive compressed and rolled in a box, and many are infused with green tea and charcoal. Zinus says the green tea helps keep the mattress fresh and that active charcoal microparticles help block moisture and odour (Zinus Green Tea collection).

On its flagship Original Green Tea Memory Foam Mattress, Zinus lists three layers of CertiPUR-US certified foam, an OEKO-TEX certified cover and fibreglass-free construction. It says the mattress can take up to 72 hours to reach full height after unboxing (Zinus product page).

• CertiPUR-US is a US certification programme for polyurethane foam content and emissions.
• OEKO-TEX certification means the textile has been tested for harmful substances.
• Fibreglass-free matters because some budget mattresses use fibreglass as a fire barrier, which can be a nuisance if the cover is ever removed or damaged.

Zinus mattress models compared

The Zinus line-up changes regularly, and model names differ between countries and retailers. Treat this as a snapshot of the main families at the time of writing (September 2026). Tom's Guide's January 2026 round-up of Zinus deals listed these widely sold models:

On its US website, Zinus now also groups its Green Tea mattresses into Core, Signature and Luxe tiers, each available as memory foam or hybrid, with cooling features increasing as you move up. The Zinus UK website lists a smaller range, including memory foam, pocket spring hybrid and Bonnel spring models in metric sizes. Always check the exact model name and specification on the listing you're buying from.

Memory foam or hybrid: which Zinus mattress should you choose?

This is the biggest decision, and it matters more than the height or the marketing name.

Choose all-foam if you...

• Sleep mainly on your side and want your shoulders and hips cushioned.
• Share a bed with a restless partner, since foam absorbs movement well.
• Want the lowest possible price.
• Need something light enough to move into a small room or up narrow stairs.

Choose a hybrid if you...

• Sleep hot, because coils allow more air to move through the mattress.
• Sit on the edge of the bed a lot to get dressed, or struggle to get up from a soft surface.
• Prefer a bouncier, more traditional feel rather than sinking in.
• Sleep on your back or front and want a bit more support under your hips.

Choose a Bonnel spring if you...

• Need a cheap mattress for occasional guests, a bunk bed or a short-term let.
• Don't mind a firmer, more basic feel with less pressure relief.

How firm is a Zinus mattress?

Zinus describes the Original Green Tea Memory Foam as medium-firm, rating it 6.5 out of 10. Tom's Guide rated the same mattress 5.5 out of 10, which is closer to medium-soft. That gap is a useful reminder that firmness is subjective.

How firm a mattress feels depends heavily on your weight and position. Lighter people sink in less and usually find foam firmer than heavier people do. As a rough guide:

• Side sleepers usually suit a softer or medium feel, so foam works well.
• Back sleepers often prefer medium to medium-firm.
• Front sleepers generally need a firmer surface so the hips don't sink, which is why reviewers don't recommend the softer all-foam Zinus models for them.
• Heavier sleepers may find thinner foam models bottom out, so a taller mattress or a hybrid is safer.

Zinus mattress sizes and heights explained

Zinus is an American-founded brand, and its US site sells in US sizes. The Original Green Tea Memory Foam is listed in Twin, Full, Queen and King, with the Queen measuring 60 x 80 inches and the King 76 x 80 inches. Those sizes don't match UK beds.

UK vs US mattress sizes

According to Which?, standard UK sizes are as follows. The US figures are approximate conversions for comparison.

The names are confusing: a US Queen is roughly a UK King, and a US King is wider than a UK Super King. If you're in the UK, make sure the listing says UK Single, Double, King or Super King, and check the centimetre measurements against your bed frame.

Which height should you choose?

• 15cm to 20cm (6 to 8 inches): bunk beds, trundle beds, kids' rooms and occasional guest use. Check bunk bed guard rail heights before choosing.
• 25cm (10 inches): a sensible everyday height for most adults.
• 30cm (12 inches) and above: more cushioning, often a better choice for heavier sleepers or anyone who wants a plusher feel.

Buying a Zinus mattress in the UK

UK shoppers have two main routes. Zinus runs a UK website at zinus.co.uk, and Zinus mattresses are also sold through third-party retailers such as Amazon UK and Wayfair. The range on each can differ, so compare listings rather than assuming the US model names apply.

The returns rules differ too. At the time of writing, the Zinus UK refund policy gives a 30-day return window for purchases made directly on zinus.co.uk, with items needing to be unused and in their original packaging, and a return authorisation requested first. It states that products bought through partner retailers follow that retailer's own return conditions.

That is very different from the 100-night trial advertised on the US site. Tom's Guide also warns that trial and warranty benefits are less reliable for UK buyers going through third parties. Before you order, read the seller's returns policy, and remember that UK consumer law normally gives you 14 days to cancel most online orders, although hygiene-sealed items that have been unsealed can be an exception.

Zinus trial, warranty and delivery rules

On the US site, Zinus lists free shipping, typically one business day to process and three to seven business days to deliver. Warranty claims generally need proof of purchase, so keep your order confirmation and delivery paperwork. Many warranties also expect the mattress to be used on a supportive base, so check the requirements if you're using an old slatted frame with wide gaps.

How to pay less for a Zinus mattress

1. Pick the model first, then compare sellers. Note the exact model name, height and size, then compare Zinus direct with Amazon and other retailers. Tom's Guide found the lowest US prices were often direct from Zinus, but Amazon sometimes undercuts on older models.
2. Time your purchase around sales. Tom's Guide tracked up to 40% off sitewide at Zinus US in its January 2026 round-up. Black Friday, the January sales and spring bank holidays are good moments to check. Our Black Friday 2026 guide covers how to judge whether a sale price is genuine.
3. Check for a code. Look at the Zinus store page on CouponsBeast for current offers, and sign up to the brand's newsletter for early access to deals.
4. Think about bundles. Zinus is also known for bed frames and platform bases. If you need both, a bundle or a sitewide sale can beat buying separately.
5. Don't overbuy. A tall cooling hybrid is overkill for a guest room used a few nights a year.

Worked example: stacking a sale and a code

Say a UK retailer lists a Zinus double at £300 and you find a genuine 15% code. The code takes off £45, bringing the price to £255. If delivery is free and you pay by credit card, that's your final cost. If the same code only applies to full-price items and the mattress is already on sale at £270, the code may not work at all, so the £270 sale price would be your best option. Always compare the final basket total, not the headline percentage.

The same logic works for US buyers. On a $500 queen, a 40% sitewide sale saves $200 and brings the price to $300. If a separate 10% code also works on top, it takes 10% off the reduced $300, saving a further $30 rather than $50. Codes applied after a sale are usually worked out on the lower price, so the extra saving is smaller than it first looks.

Who should skip a Zinus mattress?

A budget mattress is a compromise, and for some people the savings won't be worth it. You may be better off spending more if any of these apply to you.

• You sleep on your front most nights. The softer all-foam models let the hips sink, which can strain your lower back.
• You run very hot. Even the cooling versions are still foam-heavy. A hybrid helps, but a mattress with a thicker coil layer or natural fillings may suit you better.
• You need strong edge support. If you rely on the edge of the bed to sit down and stand up, the foam models can feel unstable.
• You want a mattress to last a decade of nightly use. Budget foam can soften faster than denser, pricier foams, so factor in replacement costs.
• You're a heavier sleeper choosing a thin model. Shallow foam mattresses can feel like they bottom out. Go taller or choose a hybrid.

None of this means Zinus is a bad buy. It means you should match the model to the job. A 20cm foam mattress on a guest bed and a 30cm hybrid for nightly use are very different purchases, even under the same brand name.

Common mistakes when buying a Zinus mattress

• Buying a US size for a UK bed. A US Queen won't fit a UK double frame properly.
• Assuming the 100-night trial applies everywhere. It generally doesn't when you buy through another retailer or in the UK.
• Judging it on day one. Foam needs time to expand and air out. Give it up to 72 hours.
• Choosing all-foam as a hot sleeper. Reviewers consistently say the basic foam models sleep warm.
• Ignoring the base. An old sagging base can make any new mattress feel worse.
• Trusting unrealistic codes. Be wary of sites promising huge Zinus codes that don't appear anywhere official. Our guide on spotting fake coupon codes explains the warning signs.

How to set up your new Zinus mattress

1. Measure your bed frame and doorways before delivery day.
2. Carry the box to the room first. It is much easier to move while compressed.
3. Unbox on the bed base, cut the plastic carefully without touching the fabric, and let it unroll.
4. Open a window. New foam often has a smell for a few days, which usually fades.
5. Allow up to 72 hours for full expansion, though you can usually sleep on it straight away.
6. Add a washable mattress protector to protect the cover and help with any warranty claim.
7. Keep your receipt and order number somewhere safe.

Tips for getting the most from a budget mattress

• Rotate the mattress head to foot every few months to spread wear evenly.
• Use breathable bedding, such as cotton or linen sheets, if you tend to run hot on foam.
• Pair a softer mattress with a slightly thinner pillow if you sleep on your back.
• If you're comparing Zinus with a mid-range brand, see our Origin mattress guide for a different price point.
• For guest rooms, a thinner Zinus model plus a good topper can be cheaper than a thick mattress.

Bottom line

A Zinus mattress is a solid choice when value matters most. Pick all-foam for side sleeping and couples, a hybrid if you run hot or want more support, and a Bonnel spring only for occasional use. Check the size and returns rules for the exact seller you're buying from, especially in the UK, then look for a sale or a verified code before you pay.