| Summary: | A convergent mixed-method approach was used to explore the relationship between
sleep quality, bedtime procrastination (BtP), and life satisfaction. 108 undergraduates were
recruited in Singapore, of whom 100 were involved in the quantitative study and 8 in the
qualitative study. The quantitative study mainly employed t test and hierarchical regression
analyses while the qualitative study utilized thematic analysis. The quantitative study
revealed that BtP and sociodemographic factors such as age, gender, and academic year of
study were not associated with low life satisfaction. However, poor sleep quality was
significantly associated with low life satisfaction. Although most undergraduates’ sleep
efficiency was more than 85%, this was not consistent with their irregular sleep timings as
they would wake up later despite their late bedtimes. The qualitative study revealed that one
of the salient reasons for indulging in BtP from the eight themes and 12 subthemes was to
feel relaxed from their academic demands and to increase their life satisfaction. A joint
display table of consolidated data showed no link between BtP and low life satisfaction.
However, as academic stress is inevitable, this study also emphasised healthier approaches to
mitigate BtP and poor sleep quality.
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