Characterisation of sleep problems in children with Williams syndrome.
Kids with Williams syndrome almost always have serious sleep trouble—screen early and treat to protect learning and daytime calm.
01Research in Context
What this study did
Annaz et al. (2011) asked parents to fill out a sleep survey. The parents had children with Williams syndrome aged 8 to 11.
The team compared the answers to the same survey from parents of typical kids. They wanted to see how many sleep problems were linked to Williams syndrome.
What they found
Almost every child with Williams syndrome had more than one sleep problem. Typical children had far fewer issues.
The problems were not just bedtime stalling. Kids woke often, snored, or had scary dreams.
How this fits with other research
Kocher et al. (2015) used the same Williams syndrome group and added teacher ratings. They found high rates of attention and anxiety issues. Poor sleep may feed these daytime problems.
Ahlborn et al. (2008) showed that kids with Williams syndrome jump at mild sounds. This sound sensitivity could wake them at night and keep them on edge.
Sivertsen et al. (2012) found that children with autism also have stubborn insomnia. Both studies tell the same story: rare genetic conditions bring heavy sleep loads.
Why it matters
If you work with a child who has Williams syndrome, treat sleep as a core target. Ask parents about bedtime, night waking, and snoring at every visit. A simple sleep log for two weeks can guide your next step: medical referral, melatonin trial, or behavior plan. Fixing sleep often calms attention and mood without extra drugs.
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Hand the family a simple sleep log and ask them to track lights-out time, wake-ups, and mood for 14 days.
02At a glance
03Original abstract
Sleep is critical to optimal daytime functioning, learning and general health. In children with established developmental disorders sleep difficulties may compound existing learning difficulties. The purpose of the present study was to evaluate the prevalence and syndrome specificity of sleep problems in Williams syndrome (WS), a neurodevelopmental disorder affecting around 1 in 20,000 live births. Parents of 64 children with WS, aged 6-12 years, and 92 age matched healthy controls were surveyed about their child's sleep habits. The Child Sleep Habits Questionnaire, general health and background information were collected from the parents. Ninety seven percent of parents reported that their children had sleep problems and reported a high prevalence of sleep difficulties: greater bedtime resistance, sleep anxiety, night waking and daytime sleepiness. This is the first study to our knowledge to survey sleep problems in a large cohort of school age children with WS. Sleep problems in children with learning difficulties are often amendable to treatment if diagnosed early. Furthermore the negative impact of sleep disturbances on daytime behaviour and learning should be measured before diagnoses of behaviourally defined disorders are considered.
Research in developmental disabilities, 2011 · doi:10.1016/j.ridd.2010.09.008