The dual sided mattress that grows with your child twist is the little green sheeps award winning cot mattress that offers thebest support for your baby and child dual sided this 100 natural mattress isdesigned to provide your little one with the right support as they grow frombaby to toddler and beyond the little green sheep is official partner of the lullaby trust helping to promote safer sleep for babies features dual sided support for baby and toddler one side is firm as recommend