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.
Who can sleep on a king mattress?
The 150 x 200 cm mattress is the optimal size.
It's not too wide and will fit into most rooms but it's still wide enough to offer two people more than enough space and a comfortable night's sleep.
A mattress of this size can also easily accommodate a baby, child, or pet who may hop into bed from time to time.
Singles can also enjoy the 150 x 200 cm mattress and it's perfect for restless sleepers.
|Size||150 x 200 cm|
|For whom?||Singles, couples, guests|
|Materials?||High-quality materials such as latex, memory foam, cold foam, and springs|
150 x 200 cm mattress - the optimal size for couples
The 150 x 200 cm mattress is the optimal size for couples.
It's a little bigger than the 135 x 190 cm double mattress and will offer both partners more room to sleep and toss and turn.
This is particularly advantageous if one or both partners are of a larger build or restless sleepers.
The 150 x 200 cm mattress also isn't too wide to not fit into bedrooms. While, of course, some rooms are smaller than others, it should fit into most bedrooms, even in the UK.
150 x 200 cm mattress - for the sleep-loving single
If you love your sleep, then there's no reason not to indulge in a 150 x 200 cm mattress even if you sleep alone.
This mattress offers ample space for you to sleep, read, watch movies, lie crossways, practise yoga - anything, really.
It's also a great choice for very restless sleepers or people of larger build who enjoy their space.
150 x 200 cm for babies, children, and pets who hop into your bed
Do you have a baby, child, or pet that likes to hop into bed with you and your partner?
Then the 150 x 200 cm king mattress is perfect. There will be enough space for everyone to sleep comfortably.
Different types of materials for 150 x 200 cm mattresses
The 150 x 200 king mattresses are available in many different types of materials.
Not each material will be right for you, the shape of your body, or your preferred sleeping position.
Memory foam mattresses adapt well to the contours of the body and relieve pressure adequately.
They also have very low motion transfer, making them an excellent choice for couples.
Motion transfer refers to movement in the mattress.
Low motion transfer means that movements will be absorbed and not travel across the mattress.
This means that you won't be disturbed by your partner's movements at night.
On the downside, memory foam retains more heat than other types of foam, increasing the overall sleeping climate. This is not ideal for people who easily feel hot or heavy sweaters.
Many memory foam mattresses have a cooler top layer and breathable cover to counteract this.
Latex foam mattresses are very comfortable to sleep on.
They offer a high point elasticity, are great for restless sleepers, and are also much cooler than memory foam mattresses.
Latex also has natural anti-allergenic properties, making it suitable for people prone to allergies.
Natural latex mattresses are also a great choice for people who are looking to invest in a high-quality, durable mattress that's environmentally friendly.
High-quality latex mattresses are considerably more expensive than other mattress models.
Cold foam mattresses are characterised by their high point elasticity, low motion transfer, and stability.
High-quality mattresses only use cold foam as their base layer, which adds stability and firmness to the mattress as a whole.
Pay special attention to the density of the cold foam used and make sure you choose a mattress with a density of 40 kg/m³ and up.
Gel foam mattresses are characterised by their adaptability, high point elasticity, and cooler sleeping climate.
Most high-quality mattresses only use gel foam as the upper comfort layer of a mattress and combine it with firmer and more stable base foams.
This is because gel foam is quite soft and more expensive than other foams.
Innerspring mattresses come in a wide variety of different styles but they're all characterised by their spring core, stability, and greater breathability.
They're also better ventilated and allow for a cooler sleeping climate, making them a good choice for people who easily feel hot at night.
Of the innerspring mattresses, we'd recommend the pocket spring mattresses. Here, springs are wrapped in individual pockets, which makes the mattress more comfortable.
Nowadays, many spring mattresses are available in a hybrid form, combining spring and memory foam to accentuate the advantages of both materials.
Can I buy a cheap 150 x 200 cm mattress?
If you're buying a 150 x 200 cm king mattress, then you'll undoubtedly want your mattress to last a long time.
Never compromise on quality.
High-quality mattresses can last for ten years or longer, so making a bit of an investment is worth it.
After all, the quality of your sleep affects the quality of your life.
Pay special attention to the materials, stability, and firmness of your mattress.
Also ensure that foams used are of a high density. The higher the density, the longer the lifespan of the mattress.
This table on density can be used as a rough guide:
|Density (in kg/m³)||The expected lifespan of the mattress|
|Up to 25||Up to 2 years|
|30||Up to 3 years|
|35||5 - 6 years|
|40||6 - 8 years|
|50 - 60||10 years or longer|
But buying a high-quality mattress doesn't mean that you need to sell your arms and legs. There are many high-quality mattresses available at great prices.
They also all frequently run promotions, so you can save up to 50% on your purchase!
Check out our discounts page for all the current promotions available.
When choosing your new 150 x 200 cm king mattress, pay special attention to the quality of the mattress.
If you're choosing a mattress of this size, then you'll undoubtedly want to keep it for a long period of time.
High-quality mattresses can last up to ten years or even longer.
Over the long term, making a good investment is worth it.
There really is no going wrong with the 150 x 200 cm king mattress.
If you have the budget and your room is large enough, then this is the perfect choice for singles and for couples.