We know that when it comes to setting up a baby’s nursery you’ll want their cot to be just right. We have some tips here on how to choose the perfect baby mattress. One of the most essential tips is to make sure you choose a mattress that is breathable and promotes good airflow. Whether you go for a spring or dual-core mattresses is up to you, but always make sure you get one that is the right size for the cot.