The importance of a good night's sleep should not be underestimated! Studies have shown that sleep deprivation can lead to lowered alertness and productivity. Lack of sleep can make it difficult to be an engaged, happy mother, and a lack of quality sleep has been linked to postpartum depression. It's not always easy to get enough sleep while your baby is very young, but there are ways you can get the most from your sleeping time without weaning or “training” your newborn.