18MONTHS TO 5 YEARS WARNING Barrier must not be used with children under the age of 18 months or above 5 years Make sure that, when the Barrier is positioned and fixed, there is a space of at least 25cm (10 in) between each side of the bed and the corresponding end of the Barrier The use of the barrier is allowed with mattresses having: Length 150-250cm / Minimum width 90cm / Maximum height 20cm Do not use the barrier with mattresses over 20cm thick