Review of the Big W Kodu Mattress in a Box

If you are looking for a mattress that sits on the cheaper end of the price scale, then Big W is as good a place as any to find one.

Whether it be as your main mattress, for your third or fourth bedroom, or even for your Air B&B property, the Big W Kodu Mattress in a box might be an attractive option in terms of price, as it is one of the cheapest products on the market. But is it any good to sleep on?

We took a closer look, tested it out thoroughly, and came up with the following conclusions.

Big W Kodu Mattress in a Box 

The Big W Kodu Mattress in a Box retails at $199, so it is easy to see why people buy it.

However, if the old maxim of you get what you pay for is true, then you should not be surprised to discover that this particular mattress is very uncomfortable, and in essence, not especially that good.

Buying and Delivery

The Big W Kodu Mattress in a box can be bought from Big W either via an online order, or in-store, with ‘click and collect’ being a particularly favoured option.

Like other mattress in a box style products, this version is compressed by heavy machinery to ensure it fits neatly into the cardboard box. This potentially makes it easier for you to take home yourself and thus avoid delivery charges. Especially if have a larger motor vehicle like an SUV.

At 30kg the box may be heavy for some people to carry alone, and you will probably need two people to place it into your car. That said the box does have a convenient set of wheels which makes it a bit easier to transport from the store to your car.

Once you get home, the act of removing the mattress from the box should take around five minutes. It is a fairly straight forward process and once you have done it, you should allow two days for the mattress to fully decompress as per the manufacturer’s recommendations.

Adopting a rather ‘classic’ white and grey colour theme, the bed unsurprisingly looks cheap, but depending on your requirements that might not worry you.

How Comfortable is it?

The mattress comprises of a layer of ‘soft fillings and foam’ which are contained within a polyester cover. Unfortunately, this does not make for a particularly good experience when laying on it.

The top layer is hard and very uncomfortable, offering virtually no pressure relief at all. Whilst its Bonnell spring system, provides very little in the way of the back support.

It also seems very unstable too, with a very evident ‘motion transfer’ that is likely to facilitate a high level of disturbance from your partner.

Furthermore, during normal sleep movements, you can actually feel the springs press into your body. This makes it very unpleasant when you move around on it.

About the Mattress

The Big W Kodu Mattress in a Box is only available in a queen size. It also has a height of 18cm, which is significantly lower than most of its direct mattress in a box products.

Whilst a low mattress height does not immediately mean poor quality, in this case it unfortunately does, given that the edge support is very poor.

You should also be mindful that the mattress does not have eco or non-toxic certifications. It also does not have any form of trial period or warranty, unlike most of its major brand name ‘mattress in a box’ rivals.

In addition, once you have taken the mattress out of the box you CANNOT put it back in there.

What bed base should I use?

As a general rule the firmness, durability and performance of a mattress will vary depending on which bed bases you use.

Like with most mattresses, this version from Big W Mattress is best used with a solid bed frame, or at the very least a solid ensemble base.

You might be able to get away with a bed frame that has flexible slats too, but you should not use the mattress with an adjustable bed base.


Whilst its price of $199 might be very alluring, this is not a good mattress to buy at all for a good, quality night of sleep.

It is very uncomfortable to lay on and after a while you will definitely not look forward to sleeping on it. The bed also does not have any eco non-toxic certifications, nor a warranty or trial period.

Infact the only reason to buy it would be for aesthetic purposes, particularly if you are looking to sell a property and need to furnish a bedroom.

Other than that, you would be well advised to steer clear of it. There are for sure so many better alternatives on the market currently that will not cost you that much more to buy.

Product Features

The product features for the Big W Kodu Mattress in a Box product are as follows:

  • Box measurements: 29cm (H) x 29cm (W) x 100cm (D)
  • Weight 15.5kg
  • 18cm high
  • Ready to sleep on in 48 hours after decompression
  • Comes with a polyester soft knit white fabric cover
  • Has a layer of soft fillings designed to give support and comfort
  • The mattress comes rolled up in box
  • Easy product to take home in your car
  • Offers a soft to medium support system
  • Recommended for use on slat base beds
  • Bonnell springs are tempered steel
  • Recommended to be used with a waterproof mattress protector

Big W is open 7 days a week. If you would like to buy this Big W Kodu Mattress in a Box you can do so from any of their stores, or directly via their website.

If you were to order via ‘Click and Collect’, before 12pm, you may even be able to pick it up on the same day of purchase.

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