The duration of sleep also differed, with a peak of 16 minutes more sleep per night by the age of six months.
A study by King's College London and St George's University of London has found that babies introduced to solid foods early, slept longer, woke less frequently at night and suffered fewer serious sleep problems, than those exclusively breastfed for around the first six months of life.
The study was supported by the UK Food Standards Agency (FSA), the Davis Foundation, and the UK National Institute for Health Research.
A research at King's College London conducted clinical trial on two groups of women.
WEDNESDAY, July 11, 2018 (HealthDay News) - Early introduction of solids is associated with significantly longer sleep and less-frequent waking for infants, according to a study published online July 9 in JAMA Pediatrics.
"All new parents want their babies to sleep", said University of Pennsylvania nursing professor Diane L. Spatz, who also is a researcher and manager of the lactation program at Children's Hospital of Philadelphia. However, 75% of British mothers introduce solids before five months, with a quarter (26%), citing infant night time waking as influencing their decision.
They also found these benefits were long lasting - with the babies who had started eating earlier still sleeping better at one year of age.
There was, however, no difference in the amount of daytime sleep between the two groups of infants.
The children's health and behaviour was followed for three years, with their sleep and consumption of solid food tracked by families through questionnaires. Given that infant sleep directly affects parental quality of life, even a small improvement can have important benefits'. This further analysis of data collected during EAT could be of interest to parents, however, there are limitations to the findings.
'However, the evidence base for the existing advice on exclusive breastfeeding is over ten years old, and is now being reviewed in the United Kingdom by the Scientific Advisory Committee on Nutrition and in the EU by the European Food Safety Authority.
The US Department of Health and Human Services, the American Academy of Pediatrics, and the World Health Organization all officially recommend that infants be exclusively breastfed for the six months after birth.
"We expect to see updated recommendations on infant feeding in the not too distant future". If there is any doubt about what's best for your baby, please seek advice from your doctor or health professional'.
One finding deemed crucial by Lack was that the parents who exclusively breastfed for those first six months were twice as likely to report an issue with their child's sleep than those in the solids group.