The good news is that all ‘sleep strategies’ work and do not cause lasting harm to your baby. Therefore, parents can pick the style they are most comfortable with. It is very important to help your child sleep because parents need to get their sleep. A 2008 study found that mothers of infants with sleep problems were more like to report symptoms of clinical depression when their child was 2 years old. Sleep problems also lead to significant parental stress and poor parenting.
The most common sleep methods include:
1-Cry it out, also known as extinction,
2-Graduated Extinction
3-Fading
4-Scheduled Awakenings
5-Parental education
6-Always pick them up
Read more…http://www.nytimes.com/2016/08/02/upshot/putting-your-baby-to-sleep-some-advice-and-good-news.html?em_pos=small&emc=edit_up_20160803&nl=upshot&nl_art=4&nlid=70588104&ref=headline&te=1