A mattress with moderate hardness
It is recommended to choose a mattress with moderate hardness, which can help your baby improve sleep and promote the healthy growth of bones and spine.
A mattress that is too soft
A mattress that is too soft is comfortable to sleep, but it is easy to fall and difficult to turn over.
A mattress that is too hard.
Too hard mattress can't support all parts of the body properly, but it will cause more serious chronic damage to the spine, especially to developing children. Once the spine is damaged, it will not only affect the growth and appearance, but also affect the development of internal organs.