Objectives: Poor sleep is associated with adverse outcomes during childhood. Behavioral insomnia is the most common sleep difficulty experienced by children. The coronavirus disease 2019 (COVID-19) global pandemic in 2020 has profoundly affected children’s sleep patterns. This project aimed to evaluate a one-toone sleep service delivered via online clinics by community sleep practitioners in the UK. Methods: This was an observational pre- and post-evaluation study over a 12-month period. The intervention derived from aspects of cognitive-behavioral therapy for insomnia. The evaluation was questionnaire-based and assessed sleep parameters and well-being. Results: 104 parents returned completed questionnaires. The average time of sleep onset was 1 hour and 39 minutes pre-intervention and 20 minutes post-intervention. The average number of nights per week that children woke up was 3.9 pre-intervention and 0.9 post-intervention; the number of night awakenings fell from 1.9 to 0.5 and the time that children were awake after sleep onset fell from 66.8 minutes to 5.8 minutes. The average time that children were asleep was 8.0 hours per night pre-intervention and 10.2 hours post-intervention. The improvement in all sleep parameters was statistically significant (p<0.05). All parameters of parental and children’s well-being improved significantly (p<0.05), except for perceived ability to drive (p=0.07). All parents stated that they would recommend sleep support and 20% already had done so. Conclusions The COVID-19 pandemic has accelerated the development of remote health care solutions, and in the case of children’s sleep clinics, the online mode of intervention delivery that is as effective, acceptable, and accessible as face-to-face delivery.