My wonderful LC just sent me a newsletter about BFing, co-sleeping, and nursing in bed. It included this information --
In a study of mothers and fathers at three months postpartum, data were collected via wrist actigraphy and using sleep diaries (Doan et al., 2007). The study compared sleep of exclusively breastfed infants vs. those supplemented with formula. In this sample, 67% were fed exclusively with breast milk, 23% were fed a combination of breast milk and formula, and 10% were exclusively formula fed. Mothers who exclusively breastfed slept an average of 40 minutes longer than mothers who supplemented. Parents of infants who were breastfed during the night slept an average of 40 to 45 minutes more than parents of infants given formula. Parents of formula-fed infants had more sleep disturbances. They concluded that parents who are supplementing with formula under the assumption that they are going to get more sleep should be encouraged to breastfeed so they will get an extra 30-45 minutes of sleep per night.
The most recent study was published in the journal Sleep, a major sleep-medicine journal not necessarily known for their support of breastfeeding. This was a study of 2,830 women at 7 weeks postpartum (Dorheim et al., 2009). They found that disrupted sleep was a major risk factor for postpartum depression. But here is where it really gets interesting. When considering what disrupted sleep, they found that the following factors were related to disturbed sleep: depression, previous sleep problems, being a first-time mother, a younger or male infant, and not exclusively breastfeeding. In other words, mothers who were not exclusively breastfeeding had more disrupted sleep and a higher risk of depression.
https://www.ibreastfeeding.com/content/newsletter/nighttime-breastfeeding-and-maternal-mental-health
Re: BFing mothers get more sleep (article)
Interesting! The section you quoted doesn't mention if the BFing mothers were broken down by bed-sharing vs. not. However, I followed the link and saw that I different study in the article found:
"When comparing whether bedsharing made a difference in total sleep, they found that bedsharing, breastfeeding mothers got the most sleep, and breastfeeding mothers who were not bedsharing got the least amount of sleep. Mothers who were bottle-feeding got the same amount of sleep whether their babies were with them or in another room
I was a BFing non-bed sharing mom. I certainly felt like I was getting less sleep! And I completely buy into the disrupted sleep being a risk factor for PPD. I struggled with extreme baby blues (or mild PPD, whatever you want to call it) and I definitely attribute the worst of it to losing sleep.
I was having a hard time believing the article until this was pointed out!
W (02/2009), N (08/2012), and C (04/2014)