For parents of young children, few things are as precious as a good night’s sleep—both for their child and for themselves. Yet many parents struggle with getting their little ones to bed and ensuring they get the rest they need.

A poll from the C.S. Mott Children’s Hospital sheds light on the sleep habits and challenges of children aged one to six years. Perhaps of greatest concern is that nearly one in four young kids struggle with anxiety at bedtime.

The poll, which surveyed a national sample of parents with kids under seven, found that the vast majority (90%) have a bedtime routine for their child. These routines often include:

Brushing teeth (90%)

Reading bedtime stories (67%)

Taking a bath (54%)

Praying (31%)

Talking about their day (23%)

But bedtime struggles are common, with 27% of parents describing the process of getting their child to bed as difficult. The poll identified that 23% of children were worried or anxious at bedtime and had trouble falling asleep. Once asleep, some children:

Wake up upset or crying (36%)

Move to their parents’ bed (43%)

Insist that a parent sleep in their room (31%)