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. 2020 Feb 29;17(5):1583. doi: 10.3390/ijerph17051583

Table A9.

Cluster compositions of original ideas and mean importance ratings of parents in group 3 (S1 N = 8; S2 N = 9), including the assignment of original ideas to main ideas.

Clusters Original Ideas Idea nr. 1 Merged to Main Idea 2 Mean 3
1. Mental distress and active brain 3.4
Having many thoughts 1 Many thoughts 4.2
Having all kinds of questions before bedtime 2 Many thoughts 3.0
Wanting to solve world problems before bedtime 3 Many thoughts 3.9
Continuing to think about something that is about to happen the next day 4 Upcoming stressful event 3.6
Continuing to think about something that happened that day 5 Recent stressful event 3.6
Having many ideas and wanting to realize these before going to sleep 6 Many thoughts 3.8
Indistinctness about what is going to happen the next day 7 Many thoughts 3.4
Being too tired (overtired) before bedtime and getting hyperactive due to that 10 Too tired 3.6
When the child has planned to do something that day and tis still needs to happen before going to bed 18 Many thoughts 3.1
Not willing to end the day, because it was such a fun day 24 Many thoughts 2.6
Curiosity about how sleep works, wondering when and if you will wake up 28 Many thoughts 2.0
Not being able to let go of feelings of injustice before bedtime 42 Many thoughts 3.7
2. Family- and social environment 3.1
When the parent rushes to take the child to bed 8 Parental stress 3.1
When the parent deviates from the usual bedtime routine 9 Deviate from usual bedtime routine 3.4
Going to bed too late 19 No consistent sleep schedule 3.3
When the sleep schedule gets disturbed 20 No consistent sleep schedule 3.4
Older brothers or sisters that are allowed to stay up longer 21 Social norm for bedtime among siblings 2.7
Other children in their class that are allowed to stay up longer 22 Social norm for bedtime among classmates 2.3
When there are visitors at home 23 Fear of missing out 3.1
Wanting to stay with their parent and not wanting to be alone 33 Reluctant to sleep alone 3.2
3. Sleep environment 2.8
Noise from the street 11 Noise outside 2.9
Absence of the favourite stuffed animal or sleeping cloth 29 Absence of favourite sleep accessory 3.1
A dark bedroom 32 Too dark 2.9
When it is too quiet at home 38 Too quiet 2.1
Noises from in or outside the house that are different than usual 39 Noise outside 3.0
4. Stressful family situation, worries and fear 3.9
Parents who are in a fight 12 Parental relationship problems 4.7
Relationship problems between parents 13 Parental relationship problems 4.3
Worrying about things that are going on at home 14 Worrying 3.8
When something is going on with (one of) their friends 15 Worrying 3.6
Not feeling safe at home, in the classroom or outside on the streets 17 Feeling unsafe 4.1
Being afraid that someone comes into their home or something happens with their home 27 Being afraid 3.1
Having watched a scary movie 30 Watching something scary 3.9
Having watched the news 31 Watching something scary 3.3
5. physical- and mental well-being 3.7
When other children were unkind and still worrying about this 16 Being bullied 4.2
Feeling pain 25 Pain 4.2
Being ill 26 Illness 4.2
Having had inadequate stimulation during the day 34 Inadequate daytime stimulation 3.1
Having had excessive stimulation during the day 35 Excessive daytime stimulation 3.4
Dreams that keep children awake or wake them and cause restless sleep 36 Unpleasant dreams 3.3
When something happens in the light sleep phase, waking the child and giving opportunity to start thinking 37 Many thoughts 3.0
6. Screen behaviour before bedtime 4.1
Activating computer games that cause stress before bedtime 4 40 Play with activating toys before bedtime 4.4
The light of screens (tablet, computer) right before going to sleep 4 41 Screen use before bedtime 3.7

1 Idea nr. = The number of the generated idea in this group. This corresponds with the numbers on the concept maps in Appendix A. 2 Merged into main idea = The overall main idea to which the original idea of this group is assigned. 3 Mean = mean importance rating on a 5-point Likert scale based on the question: ‘Think about the sleep of a child in the age of 4-12 years, how much does this affect their sleep?’ answered on a 5-point Likert scale from ‘does not affect at all = 1’ to ‘affects a whole lot = 5’; 4 a new cluster was created with this idea. Bold values indicate ideas rated as important (with a rating ≥3.00); Cursive values indicate the overall mean rating per cluster. S1 = Session 1, brainstorm; S2 = Session 2, sort and rate.