When buying a children’s bed and mattress one of the most important factors to consider is age. This impacts the longevity of the bed, and your child’s comfort, safety, and style preferences. Our beds for kids come in four sizes to suit every age: Toddler mattresses Toddler mattresses are 70cm in width and 140cm in length. This will usually last your child until they are around 4-5 years old. Before you know it, they'll be ready for their first kid's single bed. Children’s single beds single mattress is 90cm in width and 190cm in length. Most bunk beds, high sleepers and mid sleepers require a single mattress. European single kids’ beds The difference between a children’s single bed and Euro single beds is that Euro single beds are 10cm longer. Euro single mattresses are 90cm in width and 200cm in length. Our kids’ Euro single beds are all mid sleeper or bunk bed styles which are more suited to older children and teens.