We originally bought these for E because she sized out of her crib because she was so tall for the crib, but she LOVED the rails, so we bought a frame for a floor bed and used these for over a year with her. We just brought them back out because AJ has been hitting her head on the side of the crib and waking up because she’s essentially a little tornado in the crib. But since we still wanted her to be contained, we brought back out the sliding rails. It allows us to easily lay in bed with AJ too when she needs us and to climb in and out on her own. Have questions? Just ask! toddlersleep toddlermom LTKBaby LTKKids LTKmomlife