If you are looking for a mattress for a cabin bed, mid sleeper bed, high sleeper bed or top bunk bed, then you will need to be aware of the mattress depth. Mattresses for these types of beds need to conform to UK safety regulations. We also have a range of junior single mattresses which are slightly narrower than a standard single mattress. Children's Bed Shop also stock a range of European single mattresses which are slightly longer than UK versions. You can contact our experts today if you need any help whatsoever with your next mattress purchase.