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.
Best UK alternatives
Since the Lilia pillow is not yet available in the UK, why not consider these customisable pillows instead?
Lilia Sleep Forever pillow composition
The Lilia Sleep Forever pillow consists of four different foam layers with mysterious names like “Pure Heaven Foam” and “Sturdy Slumber Foam”.
Lilia uses very high-quality foams with densities of up to 50 kg/m3, which is a testament to the overall quality of this pillow. ⭐️
For now, let’s consider the foam layers in more detail.
The Lilia Sleep pillow foam layers
As we've mentioned, there are four different foam layers in the Lilia pillow.
Here's a closer look at each of these.
Lilia Cloud Foam
The top layer of the Lilia pillow is the Lilia Cloud Foam. ⛅️
This is a 3 cm (0.4 inches) memory foam layer, which provides a soft and snuggly feel.
Pure Heaven Foam
The second layer, also with a height of 3 cm (0.4 inches), is a unique foam specifically developed for side sleepers.
This is a three-in-one foam pad with two sides of cold foam and a memory foam centre.
The slightly firmer cold foam sides prevent the head from rolling to and fro when sleeping in the side position, and the memory foam centre provides a comfortable feel.
Forty Winks Foam
The third layer of the Forever pillow is a 4 cm (1.6 inches) thick memory foam layer.
This layer adds extra height to the pillow, which is perfect for side sleepers, but it can also be easily removed if you prefer a lower loft pillow.
We look at the right pillow loft for your preferred sleeping position further down.
Sturdy Slumber Foam
The final layer of the Lilia pillow is a 3 cm (0.4 inches) base foam pad.
This layer gives the pillow extra stability - something you won’t find in feather pillows or cheaper foam pillows. 🧱
Lilia’s unique sandwich design
So far, so good.
But while the composition of the different foam layers is important, we think what makes the Lilia pillow special is how easily you can adjust these.
The Lilia pillow can easily be opened up with a zip and unfolded - like a sandwich. 🥪
Once unfolded, you’ll see two pockets (top and bottom), with the respective top and base layers.
In the middle, you’ll have the side sleeper layer and the additional memory foam layer.
Finding the right combination of layers for your sleep style can be difficult.
We guide you through this further down.
We love how easy it is to adjust the layers of the Forever pillow.
Many of the other pillows we’ve tested have a pocket design.
This means the pillow only opens up on one side, and you have to pull the individual layers out and squeeze them back in again to adjust.
Is pillow customisability important?
Why, yes, it is.
Even though some brands may claim that theirs is “the perfect pillow”, there really is no such thing. 😢
This is because we’re all different - and need different pillows.
A tall, muscular side sleeper will require a vastly different pillow than a small, thin back sleeper.
But the mattress you’re sleeping on also matters.
Our sleep expert, Walter Braun, explains:
Which pillow you need depends on your individual requirements. You can find the perfect pillow for your sleeping position only if you have a suitable mattress. If the mattress is softer, you should use a lower pillow; if the mattress is firmer, the pillow should be higher.
Pillows that can’t be adjusted are often too high for some sleepers - or too low for others.
Both of those can lead to uncomfortable nights and neck pain.
Customisability allows pillows to be adjusted to suit your individual needs.
How to customise the Lilia pillow to suit your sleeping style
Finding the right combination of layers for your pillow is not always easy.
This is because the number of layers you need depends on your body type, preferred sleeping position, and your mattress.
Let’s consider this in more detail.
The right customisation for side sleepers
Side sleepers need a higher loft pillow. ⛰️
This is because the pillow needs to fill the space between neck and mattress, and because the head needs to be kept in line with the spine.
Ultimately, you’re always aiming for optimal spinal alignment to reduce tension.
If you have a firmer mattress, you should definitely keep all four layers of the Lilia Forever Pillow to get the highest loft possible.
This is because firm mattresses don’t allow for any sinkage, so you need the pillow to be high enough to allow for spinal alignment. 📏
If your mattress is slightly softer and your shoulders sink in a bit, you may need to remove one of the foam layers for better alignment.
The right customisation for back sleepers
Back sleepers will sleep more comfortably on medium-loft pillows.
Of course, this also depends on your build and the firmness of your mattress.
A height of roughly 10 cm (4 inches) will be good for most back sleepers.
We’d recommend starting with a combination of the Lilia Cloud Foam, Forty Winks Foam, and Sturdy Slumber Foam.
Depending on your build and mattress, you can add or remove an extra layer.
The right customisation for stomach sleepers
Unfortunately, sleeping on your stomach isn’t very healthy for you. 🥴
Since your head will always be turned to one side, you’ll experience a build-up of tension throughout the night and will likely wake up with a fair bit of pain.
But 8% of Brits still like sleeping on their stomachs - and we can’t blame them.
If you’re a stomach sleeper, you’d want to sleep on a very low-loft pillow - or no pillow at all!
We’d recommend the former, though, as stomach sleepers do often turn to the side at some point during the course of the night.
We’d suggest a very flat pillow of no more than 6 cm (2.4 inches).
For the Lilia Sleep pillow, you could keep the top and the base layer but remove the two middle layers.
Lilia pillow cover and washing instructions
The Lilia pillow cover is made of 100% polyester.
It is fully machine-washable at 30℃.
This is great for people prone to allergies or those concerned about hygiene. 🤧
But, always make sure to remove all the foam layers before washing as immersing these in water may cause irreparable damage. 💦
We’d recommend further protecting your Lilia pillow by adding a pillow protector or breathable pillowcase.
Lilia doesn’t have any pillowcases available yet, but why not consider some of our favourite high-quality options instead?
Our favourite UK pillowcases:
What does the Lilia Sleep Forever pillow cost?
The Lilia Sleep Forever pillow is not yet available in the UK so we can’t be sure what it would cost. 💷
In Europe, however, it’s being marketed at €129.99.
This is definitely on the upper end of the scale.
But, the high price point also makes sense.
The Lilia pillow is made of very high-quality materials with densities of up to 50 kg/m3.
This ensures the pillow’s durability.
Unlike cheaper pillows that need to be replaced ever so often, the Lilia pillow is likely to last you a very long time. 🗓️
It also comes with a 3-year guarantee, which is much longer than the industry standard.
Does the Forever pillow come with a trial period?
The Lilia Sleep Forever pillow comes with a 30-day trial period.
This starts as soon as the pillow is delivered. 🕰️
It always takes some time to get used to a new pillow (or a new mattress, for that matter).
Usually, you’ll only find out after a few days (or even weeks) whether or not the pillow actually works for you.
This is especially true if you’ve had your old pillow for a really long time.
That’s why we recommend taking full advantage of the Lilia trial period.
If you’re unhappy with your Forever Pillow after 30 nights, simply send it back and get a full refund. 🥳
Other UK pillows with trial periods:
Should you buy the Lilia Forever pillow?
The Forever Pillow by Lilia Sleep is not cheap - but it’s well worth the investment.
We love how simple it is to adjust the different layers and customise the pillow to suit your needs.
This is a great pillow for a wide range of sleepers, though it may not be the best fit for very hot sleepers.
Regardless, buying the Lilia pillow is a risk-free choice. 🥰
You get a 30-day trial period and if you don’t absolutely love it, you can send it back for a full refund.