we've gathered together all the information you need about mattress sizes for cot beds, crib beds, toddler beds and your child's first 'proper bed', plus the ages they roughly correlate to.

the standard cot sizes are single (78 x 36 inch), double (75 x 48 inch), queen (78 x 60 inch), and king (78 x 72 inch). Check exact specifications before purchasing. Metal is the strongest bed ...