Simba® Mattresses

Why choose a Simba® mattress?

Simba® is known for hybrid mattresses that combine cushioning foams with responsive spring systems. Instead of choosing between foam comfort and sprung support, a Simba hybrid mattress offers both in a single design.

A Simba® mattress can offer:

• Graphite-infused Simbatex® foam designed to support airflow and temperature regulation

• Aerocoil® microsprings for responsive, body-contouring support

• Hybrid constructions that balance cushioning, movement and stability

• Medium to medium-firm comfort options across the range

• Different depths and support layers depending on the model

• Rolled and boxed delivery on selected Simba® mattresses

• Natural materials on selected Simba® Natural Hybrid models

How to choose the right Simba® mattress

Start by deciding how much support, depth and cushioning you want. Simba® mattresses share a hybrid approach, but the range can vary by spring layers, comfort materials, cooling features and overall feel.

If you want an everyday hybrid feel, look for a mattress that balances cushioning foam with responsive spring support. If you prefer a more premium sleep surface, compare deeper designs with extra comfort layers and enhanced support. If natural materials are a priority, check the fillings and fabric details to find a mattress that better matches your preferences.

Comparing Simba®mattress features

Simba® sleep technology

Simba® mattresses use a mix of foam and spring technologies to create a responsive hybrid feel. Simbatex® foam is designed as a breathable alternative to traditional memory foam, with graphite included to help with temperature regulation.

Aerocoil® microsprings add responsive support. They compress and move as you change position, helping the mattress adapt to your body without feeling as flat or still as some all-foam mattresses can.

Simba® hybrid vs traditional pocket sprung mattresses

A Simba® hybrid mattress will usually feel different from a traditional pocket sprung mattress. Pocket sprung mattresses often have a more classic sprung feel, especially when paired with natural fillings or tufted surfaces. Simba® mattresses are designed to feel more cushioned at the top, with foam comfort layers above the spring system.

If you’re moving from a traditional pocket sprung mattress to a Simba® bed-in-a-box model, expect a more contouring surface and a slightly different type of bounce. The foam layers can feel more adaptive, while the springs help keep the mattress responsive and easier to move on than a standard all-foam mattress.

Why shop at MattressNextDay?

Next day delivery - Eligible in-stock Simba® mattresses can be delivered across the UK mainland as soon as the next day.

Lowest price promise - Compare Simba® mattresses with added reassurance around the price you pay.

Old mattress removal - Add our collection service and we’ll take your old mattress away when your new one arrives.

Excellent reviews - Read verified customer feedback to get extra reassurance before placing your order.

Award-winning retailer - Shop with a three-time NBF Online Bed Retailer of the Year.

British-designed quality - Explore British-designed mattresses made with carefully selected materials.

Need help choosing your next mattress?

Tell us about your sleeping position, preferred firmness and budget. MattressFinder™ can quickly filter the choices and point you towards mattresses that better match what you are looking for. Find your perfect mattress.

Buying guidance for Simba® mattresses

Simba® mattresses are designed to offer a hybrid feel, but each model has a different balance of cushioning, support, depth and materials. Comparing the construction will help you choose a Simba® mattress that suits your sleep position, body type and comfort preference.

How to choose the best Simba® mattress for you

The best Simba® mattress for you depends on how much cushioning, support and breathability you want from your bed.

For an everyday hybrid feel, look for cushioning foam with responsive springs. This gives you comfort at the surface, with support and airflow underneath.

For a more premium feel, compare deeper designs with extra comfort layers, cooling features or enhanced support. And if natural materials matter to you, check the fillings, cover and fabric details before ordering.

Simba® mattress specifications and UK size guide

Before ordering, check both your bed frame and the dimensions listed for the individual mattress. Common UK mattress sizes are:

A deeper mattress will increase the overall height of your bed, so check your bed frame and fitted sheet depth, too.

Simba® firmness, body weight and edge support

Most Simba® mattresses sit around a medium to medium-firm feel, but comfort is personal. Your body weight, sleeping position and current mattress can all affect how firm the same Simba® mattress feels to you.

Side sleepers may prefer a mattress with enough cushioning around the shoulders and hips. Back sleepers often need a steadier feel through the lower back, while front sleepers usually need a surface that doesn’t dip too much around the hips.

If you share a bed, also check how stable the edges feel and how much usable sleep space the mattress gives you. A stronger edge can make a mattress feel wider and easier to get in and out of, especially in a double, king size or super king Simba® mattress.

Delivery, recycling, and guarantees

Free next-day delivery on eligible mattresses - Need your Simba® mattress quickly? Free next-day delivery is available across the UK mainland on eligible in-stock mattresses.

Free weekend delivery - Where available, choose a free weekend delivery slot that fits conveniently around your plans.

Choose a delivery date - Select your preferred delivery date at checkout to make planning around work, moving day or replacing your current mattress simpler.

Learn more about our delivery and returns policies. 

Take the hassle out of disposing of your old mattress

Old mattress collection for £39 - Add old mattress removal for £39 at checkout and we’ll collect your existing mattress when your replacement is delivered.

100% of your mattress is reused and recycled - Your old mattress is separated into its core materials so they can be repurposed. 100% of the mattress is reused and recycled into new products.

A greener way to get rid of your old mattress - Avoid organising a separate bulky waste collection and choose a convenient recycling service that takes care of your old mattress for you.

Find a great value Simba® mattress

Comparing Simba® mattress cost as well as comfort? Visit the latest MattressNextDay sale to check current Simba® mattress sale offers alongside deals across different brands, mattress types and sizes. Shop mattress sale.

Ask the expert about Simba® mattresses

Choosing a Simba® mattress is easier when you know what each model is built to do. Our product experts answer common questions about Simba® mattresses, including hybrid construction, cooling features, firmness, setup and delivery.

Martin Seeley, Product Expert at MattressNextDay, answers questions about Simba® mattresses.

What type of mattress is a Simba® mattress?

Most Simba® mattresses are hybrid mattresses. They combine foam comfort layers with Aerocoil® microsprings, giving you surface cushioning and responsive support beneath.

This means a Simba® hybrid mattress can feel more adaptive than a traditional pocket sprung mattress, while still offering more bounce and airflow than a standard all-foam design.

Are Simba® mattresses memory foam or hybrid?

Simba® is best known for hybrid mattresses rather than traditional memory foam mattresses. Models use foam comfort layers, including Simbatex® foam on selected mattresses, alongside spring support systems.

If you’re searching for a Simba® memory foam mattress, check the product construction carefully. You may still get the cushioning you associate with foam, but the current Simba® range is hybrid-led.

What is Simbatex® foam?

Simbatex® is Simba’s foam comfort material, designed as a breathable alternative to traditional memory foam. Selected models use graphite-infused Simbatex® foam to help with temperature regulation and airflow.

If you tend to feel warm at night, compare the cooling features on each Simba® mattress rather than assuming every model offers the same level of temperature control.

What are Aerocoil® springs?

Aerocoil® springs are small, responsive springs used in Simba® hybrid mattresses. They’re designed to move with your body and add support beneath the comfort layers.

Different Simba® models use different spring arrangements, so compare the individual product details if spring layers, depth or support level are important to you.

How firm are Simba® mattresses?

Simba® mattresses are commonly available in medium or medium-firm feels, depending on the model. These ratings are useful for comparison, but your weight, sleeping position and existing mattress will affect how firm each mattress feels in practice.

If you want a steadier feel, focus on medium-firm Simba® mattresses. If you want more cushioning at the surface, compare the depth and comfort layers as well as the firmness rating.

Which Simba® mattress is best for side sleepers?

Side sleepers usually need enough cushioning around the shoulders and hips, so compare the comfort layers as well as the firmness rating. A Simba® hybrid mattress can work well if you want a cushioned top with responsive support underneath.

If you’re unsure, look at the individual product description and reviews to understand how soft, supportive or pressure-relieving each Simba® mattress feels.

Which Simba® mattress is best for back sleepers?

Back sleepers often need a mattress that feels steady through the lower back while still offering enough cushioning for comfort. Medium and medium-firm Simba® mattresses can be a good starting point because they balance cushioning with support.

Check the model depth, spring layers and foam construction to decide whether you want an all-round hybrid feel or a more premium layered design.

Do Simba® mattresses come in a box?

Many Simba® mattresses are vacuum-packed, rolled and boxed for easier delivery and setup. Once the mattress is in your room, carefully remove the packaging and allow it to unroll and expand.

It may be usable within a few hours, but the foams can take longer to fully settle. Keep the room ventilated and follow the care instructions supplied with your specific Simba® mattress.

How long is the Simba® mattress guarantee?

Simba® mattresses usually come with a manufacturer's guarantee. The exact length, cover and terms can depend on the model, so check the guarantee information on the individual product page before ordering.

A guarantee doesn’t cover every comfort preference or type of wear, so it’s worth reading the product details carefully before you buy.

Can I get next-day delivery on a Simba® mattress?

Free next-day delivery is available across the UK mainland on eligible in-stock Simba® mattresses at MattressNextDay. Delivery availability depends on the individual product and your location, so check the delivery information shown for your chosen Simba® mattress before placing your order.