How we test products
Our mission is to take the guesswork out of finding the perfect sleep products.
We've dedicated hundreds of hours to testing mattresses and sleep accessories, and rely on a team of testers of differing weights, temperature preferences, and sleeping positions to evaluate each product.
Tested products are granted the Sleep Hero tested stamp of approval, a mark of our review's reliability.
If we haven't personally tested a product, please be assured that we invest significant time and energy into scouring the UK market and researching the best recommendations, and we work with a team of sleep experts who review our articles, ensuring that the insights we provide are not only relatable but also reliable.
Emma Luxe Cooling mattress composition
The Emma Luxe Cooling mattress is a premium hybrid mattress by Emma Sleep UK. 🏆
It features multiple mattress layers, which include:
- A moisture-resistant top cover
- Graphite-infused ThermoSync foam for advanced temperature regulation
- Halo memory foam for body-hugging comfort
- Pressure-relieving supportive foam
- A layer of 12 cm (4.7 inches) Aeroflex pocket springs for comfort, support, and breathability
- Base foam with reinforced edges
Let’s look at all of these in a tad more detail. 👇
You can also skip this part and jump straight down to the comfort levels of the Emma Luxe Cooling mattress.
Emma Luxe Cooling mattress layers
We’ll look at the cover further down, but first, let’s look at the actual mattress layers.
1. ThermoSync foam
The first mattress layer is comprised of ThermoSync® technology foam, which is infused with graphite particles. ❄️
Graphite is known to capture excess heat during the night, which helps regulate body temperature and keeps you cooler and more comfortable.
2. Halo memory foam
Emma’s Halo memory foam provides targeted support for enhanced spinal alignment and moulds to your shape for body-hugging comfort. 🤗
3. Supportive foam
This transitional layer between the memory foam and pocket springs offers additional support and pressure point relief.
4. Pocket springs
The full-size Aeroflex pocket springs give your mattress additional support and pressure relief abilities.
Pocket springs also allow for more airflow, enhancing overall breathability and allowing you to sleep more comfortably without overheating. 💨
5. HRX base foam
The High Resiliency Extra (HRX) base foam provides further support, stability and durability.
The base foam also extends around the perimeter of the mattress and over the springs, allowing for superior edge support.
Emma Luxe Cooling mattress cover
The Emma Luxe Cooling mattress cover is moisture-resistant, easy to clean, and breathable, further helping to regulate your temperature during the night. 💦
Conveniently, the moisture-wicking top cover (made of 99% polyester and 1% elastane) can be removed and popped in the washing machine at 40℃ for a fuss-free cleaning solution.
This is ideal for those concerned about hygiene or allergy sufferers.
The grey mesh side cover also features four handles to help you rotate the mattress more comfortably.
Unfortunately, though, we felt the placement of these wasn’t very ideal and ended up rotating the mattress along the edges instead of using the handles.
Lastly, the mattress cover has a non-slip base, which prevents your mattress from sliding or slipping on your bed frame, something that's particularly convenient if you're using an ottoman bed base.
How comfortable is the Emma Luxe Cooling mattress?
We loved sleeping on this mattress for our Emma Luxe Cooling mattress review and think it offers a fabulous sleep experience. 😴
It’s an excellent combination of comfort and support, which allowed us to wake up back-pain-free and well-rested night after night.
It did take some time to get used to the mattress, though.
As you may be aware, most bed-in-a-box brands offer a risk-free trial period of more than 30 days since it can take up to 3 weeks to get used to the feel of a new mattress.
This was definitely the case with the Emma Luxe Cooling mattress. ‼️
While the exceptional stability and edge support were immediately evident, the top layers felt a bit too soft, and our testers didn’t enjoy sinking into those few layers as deeply.
This took around 2 weeks to get used to, after which our testers really adapted to the mattress and it turned into the most wonderful sleep.
You may have a different experience here, as it largely depends on whether or not you only use your mattress for sleeping or if you’re one of those “I use my bed as my occasional office” type of people who enjoys reading in bed, taking phone calls, or even sipping hot cocoa while writing a few emails. ☕️
It also depends on which mattress you’re switching over from.
If you’re coming from a softer all-foam mattress, you may notice the firmness of the Emma Luxe Cooling more.
But if you're switching over from a firmer mattress, you'll notice the soft feel of the Luxe Cooling more.
We had switched over from a very firm traditional-style pocket sprung mattress and, before that, the Simba Hybrid Essential with micro springs in its top layers, both of which offer very firm sleeping surfaces. 🌀
Which sleeping position is the Emma Luxe Cooling mattress best for?
We had testers of all sleeping positions try the Emma Luxe Cooling mattress, and - even though it’s rare to say - we felt that the mattress would be suitable for all sleeping positions.
- It was definitely firm and supportive enough for lighter-weight stomach sleepers, though we certainly would not recommend this sleeping position to avoid excessive neck pain.
- It was also definitely firm and supportive enough for lighter-weight and average-weight back sleepers, ensuring optimal spinal alignment and just a little bit of sinkage for the pelvis.
- The top few layers were also soft enough to allow for enough sinkage for side sleepers.
There is one caveat, though: The mattress will be suitable for all sleeping positions for average-weight sleepers, and your experience may differ according to your body weight. 𐄷
Lighter-weight sleepers may be comfortable in the back and stomach positions but may find that they don’t sink into the top foam layers deeply enough to allow for good spinal alignment in the side sleeping position.
On the opposite end of the scale, very heavy-weight sleepers may find that the top layers of the mattress aren’t thick enough and that they actually sink in too deeply, which could result in some discomfort.
All our testers were of average weight, between 55 kg (121 lbs) and 95 kg (209 lbs), and we recorded a maximum sinkage of 2 cm (0.8 inches) in the side sleeping position, with sinkage for the back and stomach positions averaging between 0.2 - 0.5 cm (0.08 - 0.2 inches).
Is the Emma Luxe Cooling well-suited to couples?
The Emma Luxe Cooling is a great mattress for couples. 👩❤️👨
We say this for two reasons:
- The mattress has low motion transfer, meaning movements from one side of the mattress aren’t carried over to the other side (allowing for disturbance-free sleep).
- The mattress has exceptional edge support, so couples can enjoy the full width without the fear of tumbling off the sides.
On the downside, the soft and squishy layers on top may not make this the most suitable mattress for sex, but this will largely depend on your body weight and how much sinkage you experience overall.
What does the Emma Luxe Cooling mattress cost?
While we think the Emma Luxe Cooling mattress is very comfortable, it, unfortunately, doesn’t offer the best value for money. 💷
Luckily, Emma offers frequent discounts so you’ll rarely have to pay full price.
We’ll list standard prices below and deep-dive into the discounts in the next section.
Emma Sleep UK delivery conditions
Emma UK works with DPD, UPS, and Rhenus to offer free standard shipping across the mainland, and you should get your product within 1 - 2 weeks of ordering. 🚛
Usually, Emma offers 1 - 3 day delivery options, but it’s no secret that the company’s been struggling with delivery issues lately.
Emma customer complaints on delivery have included deliveries not arriving, zero communication, rude service, boxes being left out in the rain, and damaged products being delivered.
Unfortunately, we’ve also experienced a multitude of these issues but have it on good authority that Emma is working hard to get the delivery problems sorted. 😅
Hopefully, it will be back up to standard in no time.
Should you experience any issues, the best bet would be to reach out to the customer services team directly.
We’ve had a good experience with the e-mail support team to solve our own issues with the Emma delivery process and damaged products.
How is the Emma Luxe Cooling mattress delivered?
Once your Emma Luxe Cooling mattress has arrived in good order, your next step will be to carry the box up to your bedroom and onto your bed frame.
Please remember that Emma only delivers to the front door of your building, and the Luxe Cooling mattress can weigh up to 40 kg (88 lbs) for the largest size, so you may need a friend to help you here.
Even the single mattress weighs 19 kg (41 lbs), which may be too heavy to carry alone for quite a number of people, especially if you’re elderly or disabled.
The box the mattress is delivered in is also quite large - measuring 45 x 45 x 110cm (17.7 x 17.7 x 43 inches) - so it may not be as convenient to handle as you’d think. 📦
If you feel that you may struggle, we highly recommend paying an additional fee for premium delivery, which will allow you to pick a delivery date, receive room-of-choice delivery, and also includes an old mattress removal service. 🦸♂️
How do you unbox your Emma Luxe Cooling mattress?
Once you’ve managed to get your new boxed mattress onto your bed frame, you’ll need to follow these steps:
- Open up the box and slide the mattress onto your bed frame. This may require two people, depending on how heavy the mattress is and the type of bed frame you have. Ottoman beds, for example, are notoriously cumbersome when unboxing new mattresses as the frame has a tendency to jump back up again.
- Once the mattress has been taken out of the box, position it onto your frame and carefully cut open the outer plastic wrapping.
- Unfold the mattress so it’s correctly laid out on your bed frame.
- Then proceed to remove the rest of the plastic packaging.
- Your mattress will begin to inflate as soon as the vacuum seal has been broken, but full expansion can take up to 6 hours.
If your mattress fails to inflate to its full size, we’d recommend re-checking after 48 hours and then again after 14 days.
If, after 14 days, your mattress has still not reached its correct size, this could indicate a manufacturing fault, and you'll be eligible for a product replacement.
We only experienced very faint off-gassing with our Emma Luxe Cooling, but we’d still recommend keeping a window open for fresh air just in case you encounter that chemical “new” smell. 🪟
It’s worth remembering that off-gassing is not toxic or harmful, but it may be a little unpleasant.
Should you buy the Emma Luxe Cooling mattress?
The Emma Luxe Cooling is a fantastic mattress and one of Emma UK’s most premium products currently available.
It does come at quite a price tag, though, and Emma has been having some unfortunate delivery issues resulting in rude service and damaged products.
That said, just looking at the product itself, we’d still say this is one of the best mattresses on the market at the moment, and it’s well worth the investment.
We would recommend it to:
- People who enjoy medium-firm mattresses.
- Average-weight sleepers with any sleeping position preference.
- Those looking for superior edge support.
- People with a higher budget.
You can also try the mattress for up to 200 nights before making a final decision about whether you like it or not.