Mattress Glossary

Comfort layer: In general, the higher the density or thickness of the layer, the greater the comfort. It consists of soft, white polyester fibres and some layers of foam, positioned on either side of the sprung, inner core. In a shallower mattress such as a truckle, the foam layers may be loaded onto one side to make it more comfortable, as in our Skye Truckle Mattress.

Cool Max: a unique, high tech fabric which actually wicks moisture away from your child, to help prevent overheating and clamminess; a Cool Max cover is a feature on our Lulworth Premium Plus mattress.

European size: this refers to the longer length beds & mattresses frequently found on the continent. These mattresses measure 200L x 90W (cm); the depth will vary according to type of bed (see Mattress Depth). Some of our beds require these longer mattresses; please check the individual bed description to find out.

Framed: this means a rigid frame has been fitted around the mattress layers to prevent sagging at the sides. All GLTC mattresses are framed, apart from our Truckle mattresses.

Hand tufting: a traditional technique of fixing all the layers of the bed. This is when the comfort layers stacked on top of the mattress are held in place by a pattern of tufts, which are attached to the inner core; it gives a quilted look and indicates a superior comfort level, as the more filling a mattress has the more it needs hand tufting. This is only used on our Pocket Sprung mattresses.

Hypoallergenic: the mattress components have been chosen to lessen the chance of an allergic reaction; there is no anti-allergy finish however.

Mattress depth: mattresses vary in depth due to the size of their springs and the depth of their comfort layers. Bunk and cabin beds will require a shallower mattress for safety reasons, truckle mattresses are shallower in order to fit neatly into the truckle drawer. Please take note of our recommendations on the appropriate depth mattress your bed requires, which can be found in the product details.

Non-turn: you can prolong the life of some mattresses by turning it over and spreading the wear. However some of our mattresses do not require this due to their superior construction and top loaded comfort layers. They can however be rotated to extend their durability.

Open coil: coiled springs make up the durable, inner core of your mattress. Open coil springs are linked together, so that if one spring is compressed, the adjacent one will react too - think of a domino effect. An open coil mattress is a supportive mattress, but less so than a pocket sprung one. All our Open coil mattresses are part of our "Classic" range.

Pocket sprung: this means that the springs at the core of your mattress are individually wrapped or "pocketed"; they therefore move independently of one another, allowing the mattress to contour more exactly to your child's shape and weight. This means they will have a more supportive reaction to your child's body than an open coil mattress. All our pocket sprung mattresses are part of our "Premium" and "Premium Plus" range.

Spring count: in general the more springs in a mattress, the better it can react to the unique contours of your child. You will find more springs in a pocket sprung mattress than in an open coil mattress.

Standard UK size: this is the typical size of beds & mattresses in the UK. These mattresses measure 190L x 90W (cm); the depth will vary according to type of bed (see Mattress Depth).

Toddler mattress: our toddler mattresses are a smaller size to suit our Toddler Beds. Both measure 140H x 70W (cm), and feature a breathable, washable Ventiflow cover; the pocket sprung construction ensures maximum comfort.

Turning: manufacturers often advise flipping your mattress over to spread the wear and therefore prolong the life of your mattress; mattresses that do not require turning are of an equally high quality but are more convenient (however they can be rotated to help extend their life, see Non-turn).

Truckle mattress: a shallower mattress, specifically designed for truckle drawers. Due to their shallower depth and their less frequent use, they frequently use an open coil construction rather than the more durable and sensitive pocket sprung system. They do not require a frame.

Ventiflow: a unique top cover on GLTC toddler mattresses, which promotes air circulation to help prevent overheating. It will also draw moisture away from your child's body, helping to prevent clamminess.

Waterproof: both GLTC toddler mattresses feature a wipe-off, water repellent side, which is essential to protect both foam layer and core springs from bacterial and fungal contamination. This is ideal at certain stages of your child's development.