Research & studies

Evidence-based insights into baby sleep.

Our own surveys and academic research reviews — so parents and professionals can make informed decisions about baby sleep.

Own survey · 2025

Over 100 Sleepless Nights

How sleep deprivation affects parents in the first year

In early 2025, we surveyed 1,100 parents about their sleep in the first year with their baby. The results — documented in numbers — show just how massive the impact of infant sleep problems really is.

109
equivalent sleepless nights
1,100
parents surveyed
5.5h
average sleep per night
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Academic review · 14 studies

Is Sleep Training Safe?

A review of the research for parents and professionals

94% of studies confirm the effectiveness of behavioral sleep interventions. This overview summarizes 14 peer-reviewed studies on the safety, effectiveness and long-term effects of sleep training.

94%
of studies confirm effectiveness
5 yrs
longest follow-up period
0
long-term negative effects found
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Own survey · 450 parents

Baby Sleep on Vacation

How infant sleep shapes family travel decisions

89% of parents changed their travel habits after having a baby. This survey of 450 parents reveals how baby sleep influences vacation planning, accommodation choices and the holiday experience itself.

31%
skipped a vacation due to baby’s sleep
62%
experienced worse sleep on vacation
80%
back to normal or better afterwards
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All research is conducted or reviewed by Land of Little Dreamers (Babyschlummerland). Published by Sarah Mann, certified gentle sleep consultant.