Happy Lamb Fleece Topper, It is very important to create a natural sleeping surface for a baby. If a non organic mattress is being used, we highly recommend a topper to put some distance between your baby and the non organic mattress, which by law contains fire retardant chemicals that have proven to be ill to our bodies. This topper is approximately 1.5" x 28" x 52" and is recommended for infants over 3 months of age. 100% organic Merino wool woven into a backing of 100% organic cotton - Consider this to be a natural "sheepskin". Unmatched in softness. Creates a natural sleeping surface so important to babies. Please be aware that all Holy Lamb products have a 20% restocking fee. So looking for the most comfortable and luxurious fleece for your baby with the best customer service, buy from Wildridge Healthy Living today!