Innerspring mattresses have been tried and tested over decades and remain the most popular choice today. They feature a steel coil core support system padded on top with foam or fiber material. This provides you with a comfortable, flexible, and supportive surface that keeps you cooler than other types of mattresses, allows for natural body movement, and limits motion disturbance.
What is an Innerspring Mattress
An innerspring mattress uses a steel coil support system. There are several types of spring systems, including those with springs connected into a single unit and units with individually wrapped pocketed coils. The spring shapes, designs, coil gauge and number of coils in a mattress can vary. The innerspring is covered by padding or upholstery materials, including various foams, fiber and even additional layers of smaller steel springs. In general, the greater the number of coils, the more points of support and the better the mattress can contour and support the sleeper.
Innerspring mattresses are probably the most traditional type of mattress that you can buy. It uses steel coils in the support system. Depending on the mattress, these may be connected in a single unit or they can be individually wrapped pocketed coils. The coils will then be covered with some form of padding – most commonly foam.
2. Types of innerspring mattresses
Innerspring mattress come in a variety of models. Below we will have a look at the main coil designs and their pros and cons, as well as why coil count and coil gauge are important factors to consider when buying a mattress.
#1. Pocket Spring (Marshall coil)
Often considered the best type by customers, this design is also referred to as pocket, encased, wrapped, or Marshall coil. This type of mattress consists of hundreds or even thousands of individual coil springs, each sitting in its own fabric pocket. As they are not attached to each other, the springs can move independently of each other.
This type of spring system conforms to your body, distributing your weight evenly and preventing pressure points that can cause back and shoulder pain. For this reason, pocket spring mattresses provide supreme support. The individual springs also prevent motion disturbance, as, if you move, your partner does not feel it on their side.
Due to these highly desirable features, pocket spring mattresses are usually the most expensive of all four types.
#2. Open Coils (Bonnell coils)
Open coils, also commonly called “the Bonnell,” is the oldest and most common type of spring system, and is often found in cheap innerspring mattresses. The open coil design consists of multiple springs, which are interconnected within a wire frame. A standard double open coil mattress usually contains about 300 springs.
picture of open coil type
This design usually provides a very firm support. They are often used in orthopedic mattresses for this reason. They are also lighter than pocket spring mattresses, making them easier to turn. Unlike the pocket spring, however, they can “dip” in the middle. Couples may notice movement from their partner, and roll-together can be an issue, too.
#3. Offset coils
Offset coils are similar in structure to open coils, except each spring is hinged together by a helical wire on top. Like pocket coils, this design provides body contouring and better motion isolation.
However, they can be made firmer than a pocket coil, as the hinging effect allows more load-bearing on the springs. This mattress type is a good choice if you want a soft surface with a firm, supportive core.
#4. Continuous Coils
As the name suggests, continuous coil, also known as Mira Coil, mattresses are made up of rows of coils, going from head to toe, using a single piece of wire. These are then attached with helical wires, forming an interconnected network.
This design can provide a durable and very firm and supportive mattress at a low cost. However, they do not conform to your body as pocket spring and offset coils do, and they can be noisy.
3.Pros & Cons of innerspring mattress
- Limited conforming ability:
Innerspring mattresses do not mold so much to the shape of your body as some other non-innerspring types of mattresses. This means that there is more airflow around you, which stops you from getting uncomfortably hot at night. You can also move easily on this surface, meaning that changing positions and getting up doesn’t require effort.
Innerspring mattresses are sold in a wide variety of models from a large selection of brands. This means that there is likely to be one to suit your needs as well as your budget. Whether you want firm or soft, large or small, and with or without a memory foam or latex topper, you are sure to be able to find the right model for you.
As there are so many models on the market, there will always be an affordable choice if you are on a budget. There are also many models that are a great deal and still good-quality, so you don’t have to give up on your dream of a great night’s sleep.
Some of the most common downsides that consumers mention in relation to innerspring mattresses are the noise that the springs make and also below average durability/longevity.
Top 10 Innerspring Mattresses Recommendations
Pocket sprung mattresses offer sumptuous comfort, with tailored support in a range of firmness ratings to suit your needs. Individual pocket springs are responsive to your unique movements during the night for bespoke support where you need it the most. Choose from best selling brands including Silentnight, Sealy and Rest Assured. In a wide range of sizes to suit you – you’re sure to find your perfect pocket sprung mattress!
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Best Innerspring Mattress Reviews
We’ve reviewed the best innerspring mattress brands and compiled a guide on the different types of coil springs. Below are some of the top-rated models on the market at the moment. Take a look:
1. Silentnight Mirapocket 2000 Deluxe Box Top Limited Edition Mattress
Sink into a blissful slumber with the revolutionary Mirapocket 2000 Deluxe Box Top Limited Edition Mattress from Silentnight. Crafted with you in mind, this limited edition mattress is the perfect start to your day.
- 2000 responsive Mirapocket springs
- Sumptuous 8cm layer of Super Soft Foam
- Cushioned box top finish
- Hypoallergenic for your peace of mind
- Superior medium to firm support
- No-turn, single-sided mattress
- Mattress depth: 39cm
- Made in the UK
- 5 Year Guarantee
- Designed with 2000 individual Mirapocket springs that respond to your unique movements, this mattress ensures gentle support every night.
- A deep 8cm layer of Super Soft Foam, to provide a relaxing night’s sleep just for you. Paired with a cushioning box top, this mattress adds an extra level of cosy comfort.
- The box topped style pillow top spreads right to the edges of your mattress offering a larger sleeping surface: perfect for sharing!
- Thanks to the Purotex-infused knitted cover. This hypoallergenic mattress is sure to give you the peace of mind you need for a restful night’s sleep.
- There’s no need to flip this mattress – single-sided for your benefit, simply rotate every three months!
- Luxuriously deep at 39cm – for a comfier, more supportive night’s sleep.
- When unpacked it is thin and takes several hours to expand to full size.
- Smelly for some hourses
2. Memory Zone Pocket 2000 Mattress
The Memory Zone Pocket 2000 Mattress gives you with astonishing levels of support, comfort, and palatial luxury.
- 5cm of luxurious memory foam with zonal support
- The zoned memory foam enables the mattress to contour to your individual shape and weight
- 2000 individual pocket springs for maximum support and comfort
- Foam encapsulated springs for support from edge of the mattress
- Made in the UK
- Can be used on any type of bed or divan base
- Extra deep – 25cm / 10″ (approx)
- Easy care non-turn mattress
- Fabulous 5 Year Guarantee
- The memory foam is arranged in different support regions which complement your body perfectly, varying support levels depending upon your needs.
- Each spring is cushioned inside a foam pocket. Since the springs don’t connect to each other, movement doesn’t carry to the other side of the mattress – so you and your partner to rest peacefully without disturbing one another.
- The Memory Zone Pocket 2000 is constructed with foam encapsulation around the pocket springs. This provides extra support for the springs whilst enabling you sleep right to the edge of the mattress.
- The foam encapsulation makes it easier to sit on the side of the bed without risk of damaging the springs.
- When you buy the Memory Zone Pocket 2000, you’ll enjoy its 5 Year Guarantee.
- Keeping the mattress in good shape for years to come is super-easy – the cover comes off for washing.
3. Silentnight London 2000 Mirapocket Memory Mattress
The London by Silentnight has been packed with fantastic luxury features, from memory foam to 2000 Mirapocket springs and even advanced cooling technologies to regulate your mattress temperature while you rest.
- 2000 Mirapocket springs
- Memory foam for enhanced comfort
- 7-zoned Acupressure Pad for highly targeted support
- Purotex cover offers a cooler, fresher sleep
- Non-turn – easy care mattress, simply rotate
- Soft knitted fabric microquilted finish
- Breathable airflow border
- Depth: 30cm (approx)
- Perfectly balanced medium feel firmness
- The 2000 Mirapocket springs flex gently, supporting you just right and giving a wonderfully comfy feel.
- Designed to keep you as cool and fresh-feeling as possible, the London benefits from an airflow-enhancing border, and the mattress cover uses friendly Purotex bacteria to combat moisture and mould.
- The EcoComfort Fibre comfort fillings have been proven to dramatically reduce ambient body heat, and come from recycled sources too.
- The Acupressure Pad has seven zones of support, focusing greater support for the heavier regions of your body, with mellower support levels for your neck, shoulders, and lighter body regions.
- Finished in a sublimely soft knitted fabric with a quilted finish, this perfectly complements the medium level of firmness.
- The London has also been Allergy UK Approved and is hypoallergenic for your peace of mind.
- No side hNdles to turn
- Slight warehouse/manufacturing smell that lasted for some days
4. Sleepeezee Memory Comfort 1000 Pocket Mattress
Relax and enjoy the wonderful combination of 1000 individually pocketed springs with a sumptuous double layer of memory foam comfort – the Sleepeezee Memory Comfort 1000 Pocket offers the best of both worlds!
- 1000 pocket springs
- Two layers of memory foam
- Pillow top layer of memory foam
- Luxury knitted cover
- Micro-quilted border
- Air vents for enhanced breathability
- Easy care non-turn mattress – simply rotate
- 26cm depth
- 5 Year Guarantee
- Made in the UK
- The Sleepeezee Memory Comfort 1000 Pocket offers the best of both worlds!
- With it’s cosy knitted cover, micro-quilted border and pillow top finish, this mattress certainly adds a touch of luxury for the rest you deserve after a long day.
- Chrome-finished air vents offer a more breathable, fresher mattress for a cleaner sleeping environment.
- Easy to care for, the mattress simply needs rotating every so often to ensure that you get the best night’s sleep, every night.
- Smell of it initially
5. Bodyshape Pocket 2000 Ortho Mattress
The revolutionary Bodyshape Pocket 2000 Ortho Mattress is here. Designed exclusively for Mattress Online, this mattress is the perfect way to end your busy day.
- 2000 individual pocket springs
- Foam encapsulated for enhanced comfort
- Supportive 5cm layer of high density foam
- Revitalising orthopaedic support
- Luxury quilted cover
- Refreshing Fresche technology
- Rolled up for added ease
- Balanced medium to firm firmness
- Single-sided for added ease
- Mattress depth: 25cm
- Made in the UK
- 10 Year Guarantee
- The Bodyshape Pocket 2000 responds to your unique movements throughout the night to offer you and your partner the tailored support you deserve.
- This mattress is foam encapsulated for maximum sleeping space – so you can sleep right to the edge of your mattress!
- A luxuriously deep 5cm layer of high density foam to provide optimum support all through the night.
- Paired with superior medium to firm, orthopaedic support, ideal for anyone who loves a more supportive slumber.
- Complete with a refreshing Fresche infused quilted cover, this mattress fights off bacteria, fungi and odours to ensure a clean and healthy sleeping environment.
- Not as yet
How to Choose the Best Innerspring Mattress
There are many types of innerspring mattresses – the quantity, design, and thickness (or gauge) of coils can vary a great deal. Plus, some are “hybrid” mattresses, which can be either topped with memory foam, latex, or even gel, and the depth and density of the layers can differ, too.
All of this variety can make choosing the right model difficult. But don’t let that put you off! Continue to Learn How to Choose the Best Innerspring Mattress
1. Coil Count & Gauge
One of the things that you will notice when looking at various innerspring mattresses is the coil count and gauge. The coil count refers to the number of coils in the mattress and in theory, the more coils the better the support. However, if the coils are of a lower quality of steel then this may not be the case. The gauge is the thickness of the steel or wire used in the coils. Both need to be considered, so look for a high coil count coupled with a reasonable gauge for maximum support.
#. Coil Count Guide
The coil count is the number of coils (or springs) inside the mattress. This number can range from 200 in a single to 1000 in double size mattress or 2000 in a high-quality, king size mattress.
More coils indicate a better-quality mattress, as the more springs there are, the sturdier it will be. This means a more supportive as well as longer-lasting mattress. It may not come as a surprise, then, that the higher the number of coils, the higher the cost. Anything under 300 is generally considered poor quality.
However, do bear in mind that the coil count isn’t the only thing that matters in terms of quality. The coil gauge is just also important.
#. Coil Gauge
The “gauge” of the coil simply refers to the thickness of the metal wire used to form the coil. Numbers commonly range from 12 and 15, with half gauges in between, but they can sometimes go up to 18.
While it may sound confusing, lower coil gauges have thicker wires and create a firmer spring, while higher coil gauges have thinner wires and provide a softer spring.
In other words, if you are looking for a very firm and supportive mattress, it is best to go for a 12-coil gauge. If you prefer a bouncy, soft mattress, however, go for 13.5 and above.
You should always compare the number of coils to the gauge of the coils when choosing your mattress. This is because a mattress with stronger wires but fewer coils can offer the same or even better quality as one with more but thinner coils.
2. Coil Type
Different mattresses make use of different types of coils which have their own advantages and disadvantages. No single type is better than another as you do need to take into account a number of other factors. People assume that pocket coils are best because they are individually wrapped and are great for contouring to the body, but if you have a single unit of interconnected coils with a thick memory foam top layer then you will get a similar result.
Different Coil Types Comparison
|Pocket Spring||High-priced||Distributing your weight evenly and preventing pressure points that can cause back and shoulder pain|
|Open Coils||Low-priced||Very firm support and often used in orthopedic mattresses|
|Offset coils||Mid- to high-priced||Soft surface with a firm, supportive core|
|Continuous Coils||Low- to mid-priced||Very firm and supportive mattress at a low cost|
3. Top Layer Above the Springs
One feature that can really make a huge difference to an innerspring mattress is the top layer that lies above the springs. The thickness and material of this layer is going to have a huge impact on the overall feel of the mattress. It is important to pay attention to the different materials and understand the properties and advantages that they have. For example, an innerspring mattress with a thick memory foam top layer will be more conforming, but will lose the feel and support traditionally linked to an innerspring mattress.
Innerspring mattresses do not perform well in terms of longevity and durability. One in every 4 consumers who own an innerspring state that within the first 3 years they began to notice substantial sagging to extent that the mattress began to lose comfort and support. This is a much higher rate than any other type of mattress.
One of the great things about innerspring mattresses is that they do not retain heat. The coil construction allows for air to flow in the mattress resulting in natural cooling. In mattresses which have a memory foam top layer there may be a greater level of heat retention.
Whether or not you require a topper depends on the mattress that you choose. Cheaper innerspring mattresses may have little or no comfort layer will need a mattress topper to make it more comfortable, but if your mattress of choice has a thick comfort layer then it will not usually be necessary.
6. Smell / Off Gassing
One of the things that many people find so attractive about innerspring mattresses is that they have little to no off gassing. In the small number of cases were consumers have complained of a chemical odour it is related to whether or not memory foam is used in the mattress top layer. Usually, there is not enough foam to cause any significant off gassing.
7. What to Take into Consideration Buying Mattress Online
When buying an innerspring mattress online, you are going to need to consider that you cannot test it out for appropriate firmness. It is best to look closely at the coil count, coil gauge and the layers in each mattress as this will give you a better idea of the level of firmness and support. Since oyu cannot try it before buying, look for brands that offer a 100 night trial period so that you can return it if it is not working for you. The best source of genuine feedback is to look at consumer reviews on a third party website.
Despite the surge of foam-based mattresses, there is still a large selection of innerspring mattresses on the market right now. The best innerspring mattresses are durable, supportive, and well equipped to last you many years.
I would recommend an innerspring mattress to sleepers who:
- Want a more traditional feel – For sleepers looking for a more traditional feel, innerspring mattresses are a great choice. They’ve got the bounce, density, and feel of the classic mattress that most people are used to.
- Want great bounce – Innerspring mattresses are well known for having great bounce (perfect for those amorous activities) and a nearly instantaneous response time. This means the mattress can respond and adjust just as quickly as you do and you can avoid that “sinking in quicksand” feeling.
- Want a cool mattress – An innerspring is also going to sleep much cooler than most foam-based mattresses, especially those made of memory foam. This coolness comes from the added airflow between the coils and limited material layers that can retain heat.
Read more: Best Innerspring Mattresses Recommended