The Sleepover® fits completely over the base of a travel/portacot, and the softly padded top provides a comfortable sleeping surface for baby. Additional safety features allow the base, with The Sleepover® fitted on it, to be anchored to the bottom of the travel/portacot, as recommended by the cot manufacturers. Elasticated sheets are not recommended as they can be pulled off by a child. Locate the fastening strips through the openings at both ends of The Sleepover®, feed through the slits in the bottom of the portacot and secure underneath. This ensures that the base cannot be removed or lifted up by an infant.