関連ワード:  when should a child move to a bed    when should a toddler move to a bed    when should a baby move to a bed    when does a child move to a bed    when should a child move to a single bed    when should a child move to a toddler bed    when should a toddler transition to a bed    what age should a toddler move to a bed    what age does a child move to a bed    when can a baby move to a bed