Cot Mattresses

Before buying a cot mattress see this video

When choosing the best cot mattress for your baby, your personal preferences will prioritise :- Safety, durability, comfort, support, hygiene, breathability, easy to wash, waterproof protection, guarantee, man made or natural.
Your baby will spend over 9000 hours in a cot mattress and up to 20000 hours in a cot bed. Here you will find all the features and benefits of baby mattresses that are available in the UK.

We have detailed advice pages to help you or phone our helpline 01299 823223,

 Please Select Your  Cot Mattress Size?

    112 x 55       117 x 54        120 x 60

    126 x 63     132 x70          130 x 70

    131 x 75    132 x 77         140 x 70

Cot and Cot bed Mattress Cores

We use a combination of high quality foams, springs, pocket springs, coir, and lambswool to make the very best supportive durable mattress cores.

Cover Styles and Fabrics

Award winning Easychange®" design,  full waterproof protection with two interchangeable zip on zip off toppers (one for the wash).

Qulited Micofibre

Easychange Cot Mattress With Zip Off Topper

 Coolmax© backed with Maxispace.

Easychange Cot mattress with Coolmax and Maxispace

Our unique anti-allergenic Coolmax© backed with Maxispace fabric offers the ultimate in temperature control, durability, maximum breathability and a snugly feel. Coolmax© will wick away heat and the Maxispace will help to disperse it.

Waterproof Protection

All our cot mattresses have waterproof protection. We design this to fit under the cover and over the core, this way your mattress is protected and your baby is lying on a fully air filled breathable cover.

Five Year Guarantee.

Standard springs and pocket springs are encapsulated in a superior 30/150 foam, virtually every other manufacturer in the UK uses a lower specification 24/130 foam. The link below will explain the benefits in using a superior high quality.

Nightynite® - "Its the quality that makes us different"

Advice and Information

The Best For You and Your Baby

As a new parent the two most important items you have to come to a buying decision on is a car seat and a cot mattress. Sometimes these requirements are a balance between your pocket, your personal preferences and sifting through a minefield of information,

A newborn baby is going to sleep for an average of 16 hours a day up to the age of two and approximately 12 hours a day from age 3 to 5. Your cot mattress has to meet following standards:- correct sizing, safe, comfortable supportive, durable, breathable, temperature control, waterproof protection, hygienic and washable. You may also have some other desires i.e. that you want a natural mattress. extra covers etc.

Our aim is to make you somewhat of a cot mattress expert, so you can understand how they are made and what components are used. You will be able to interrogate adverts and false claims and have the confidence that you are getting the features and benefits that match your personal needs and requirements.

How to Measure For Your Baby Mattress

The latest EU recommendations are that you should not have more than a 3 cm gap if you were to push the mattress up against one end or side of your cot. The gap is all about not getting an arm or leg stuck between the steep side of the cot mattress normally 10 cm deep and the side of the cot.

For the last 30 years the EU Regulation gap was 4 cm, 2 cm each side of your cot mattress, Now it is reduced to 3 cm, 1.5 cm each side

On older cots, going back 30+ years the British Standard recommendation was that the gap was 1 inch all the way round, or 5 cm if you pushed the mattress up to the end or side. Many of these old cots are now being fished out the loft and put you good use again mainly because of sentimental or nostalgic reasons which is really lovely. (On a personal note i sent a cot to Canada for my first grandson, that was my son's cot ). Just be aware the mattress size may give a gap of an extra 1/2 cm each side against today's new EU Regulations. Common sense has to prevail here, these are absolutely minute margins when you consider the size of a baby at birth and the size a baby is when it is a toddler.

Please build your cot first before you measure it, don't measure the base before the cot or crib is built, if you do, you have a high risk of ordering the wrong size cot mattress. When your cot is built measure at the base the length and width, bar to bar. Also look at the base, on some cots you can fit the base upside down and if you have you could see a frame around the base and appears to you that the mattress fits in the frame. The base should be flat and the cot mattress fits within 2 cm side to side end to end

Safe and Hygienic

All cot mattresses sold in the U.K. have to pass a British Standard, to be honest, no company would risk supplying a baby mattress did not comply with BS 7177 and BS1877. These Standards apply to the fireproof ratings and the quality of components used. However the standard is a minimum requirement and some that just past this test these are the basic cot mattresses. As you will see there are products available that offer much more. With baby mattresses it is very much you get what you pay for and there are different degrees of safety. £30 will not buy you a foam cot mattress that will not dip or dent, nor a waterproof separate liner or a breathable temperature control cover and a spare cover for the wash etc.

Supportive and Durable

Now some details of how your cot mattresses are made. In the back of your mind at all times remember your cot mattress has to be firm and supportive and no body fluids getting to the foam or sprung or natural core these are the recommendations of the Lullaby Trust formally (FSIDS).

Firstly the "all foam" mattress these are generally made of HR or CMHR foam, All-foam cot mattresses made in the UK will tend to be hotter and not as supportive or robust and those made with made foam and springs or foam and pocket springs

In this country we are "spring mad" we do not consider that an " all foam" cot mattress can compare with those with springs or pocket springs, but they can do. There are companies in Europe that sculpture foam so it feels like pocket springs, and designed in in such a clever way that they are breathable and supportive. We tried clever foam cot mattresses here 15 years ago, they were a similar price to sprung mattresses but they did not sell, However these "clever designed foam" cot mattresses do out-sell springs on the continent.

Consider how a sprung or pocket sprung cot mattress is made:-,

The pocket springs or the basic sprung unit is 6 cm deep and 2 cm of foam is placed either side of the spring unit to make up the 10 cm depth. Your baby is sleeping on a 2 cm layer of foam supported by springs and as your baby gets heavier their weight is pressing the foam on to the springs to bring the springs into action

The structure of the thin 2 cm foam layer each side of the bonnel or pocket sprung unit in absolutely critical when it to accessing the support and durability of your cot mattress, here's why:-

Virtually every baby mattress supplied by all the main department stores and online companies use a grade of foam 24/130, 24 being the density measuring the durability and 130 being the ILD Newton score which measures the amount of pressure the foam will take)


On our Nightynite® standard sprung and pocket sprung mattress we use a much higher specification foam layer each side of 30/150. Our cot mattresses are much less likely to dip or sink and offer much better support and are more durable,

We also use an extra super standard of foam in our Excellence cot mattress range of 50/215, if you compare this to the standard of 24/130 you can now see the huge difference in quality and why we can guarantee our Excellence mattresses for 5 years. Always check the quality of the foam being used before you buy, you may see comments like "nursery foam". If the weight is not mentioned in the format we have discussed then the chances are it is the minimum quality to meet the British Standard

Just to add another note about foam, what makes it dip or break down is HEAT, WEIGHT and DAMP Yes you are right that's exactly what a baby is! The higher specification of foam used the less likely it is to loose its support if you can afford something better than 24/130 foam it does last longer .

Fibre cot mattresses are a new innovation mainly because of the price of foam is going up and up. also fibre is slightly more Eco friendly. We will devote a chapter or too about the environment and cot mattresses later on. Fibre has advantages over foam other than being cheaper, it is not so hot as foam, nor does it have the initial chemical smell of foam. The downside is that it is not as durable as foam nor as supportive. However there are some new fibre mattress on the way that claim they compere with foam, however all our test to date do not support this. If you are going to buy an all fibre mattress find out what the standard of it is compared to foam before you buy (remember we did say a British Standard for foam is 24/130 so you want at least the equivalent in fibre).

Natural baby mattresses, these are mainly constructed using coir and lambswool sometimes with added latex and also springs or pocket springs. Coir is generally firmer than foam, the lambswool is used to give the initial comfort. Pocket springs with coir and lambswool makes an excellent mattress (we could debate whether springs are natural) Natural cot mattresses do not have a chemical smell like foam. however we found that adding latex sometimes gives it a lingering unpleasant smell..

There is no argument that Natural cot mattresses are more environmentally friendly than man made petroleum based foam and as the recycling evolution gatherers momentum. foam will become a baddie like plastic bags unless we get our recycling act into gear

Waterproof protection

We have covered many of the options for cot mattress bases, next is to prevent body fluids getting to the core of the mattress and this can be achieved by either:-

1)Putting the waterproof protection around the base unit and over the foam but under the cover


Putting the waterproof protection over the cot mattress cover, The disadvantage of doing this is that the waterproof cover will inhibit the breathability and airflow of the existing machine washable cover, especially if it is a quality cover like quilted microfibre or Coolmax with Maxispace.

Waterproof protection on a natural cot mattress is a problem. if you want a totally natural mattress you still have to have waterproof protection. There is no natural fabric that is totally waterproof so you have to compromise :- There is a 92% cotton, 3 layered fabric called Outlux made of two layers of brushed cotton with a very thin layer of PU in the middle. However the amount of air that gets to your baby from the fabric is is minimal as it is only the air held in the top layer of the brushed cotton. The air will not pass through the PU layer!

Check before you buy that your cot mattress has good waterproof protection. under the cover and over the mattress.

Breathable and Temperature Control

Add the information above to the fact that there are fabrics now available that will aid breathability, These cot mattress covers hold considerable pockets of air and will wick away heat. Coolmax© is a well known fabric that will offer temperature control but is really only effective if it is backed by a spacer fabric (like Maxispace or Spacetec) that allows the heat to dissipate it is not as effective on its own, or if cheaply quilted.

Hygienic and washable

A spare cover is really essential. Its 3 am and the body fluids go through the nappy, and sheet and hits the mattress cover, the cover is damp! To be able to slip the cover off the mattress cover and put on a clean one is ideal. Some modern cot and cot bed mattresses like the Nightynite® Easychange® have zip off toppers and waterproof base covers, just zip off the soiled topper and zip on a new one.

Most covers these days are washable at 60°c the temperature required to kill dust mites. Some fabrics like 100% bamboo are unique because bacteria can't live in it anyway so washing at 40°c is perfect.

Bamboo sheets

100% Bamboo is a lovely soft fabric for your baby's sensitive skin. Bamboo fitted baby cot, Moses basket, and crib sheets are made from 100% bamboo and have no polyester or cotton mixed with it, Naturally hypoallergenic and non-irritating so perfect for baby's extra sensitive skin

100% Bamboo has natural anti-bacterial properties, which remain even after 50 washes Ideal for asthma and allergy sufferers, bacteria cannot breed in bamboo fibre. Natural UV protection in our 100% Bamboo baby sheets Bamboo fabric will also resist, any fungus cultivation such as dust mites