Buying this mattress was a no brainer. The premium foam on both sides ensures your newborn or toddler don't sink in - which is super important when looking for a baby mattress! One side of this mattress is firmer for your infant and then when they're ready for a softer feel, all you have to do is flip it over! I will never have to replace my babies mattress and I can rest easy knowing that my child is safe. Also, the cover is so simple to remove and wash making potty training so much easier.