Health-related Quality of Life (HRQoL) has become an important construct in contemporary
medicine and health care, permitting assessment of disorder burden and evaluation of …

Insomnia disorder comprises symptoms during night and day that strongly affect quality of
life and wellbeing. Prolonged sleep latency, difficulties to maintain sleep and early morning …

… This could be relevant to the results of Kyle, Espie and Morgan [70], who found that … For
example, Kyle et al. [94] reported differences between normal sleepers and insomnia participants …

… ) of 136.5 min (SD 72.5) and mean self-reported SE of 61.3% (SD 16.2) for the sample as a
… 5.09 h (SD 1.47). On the SCI, the overall mean score of 2.98 (SD 1.04) was > 4 SD below the …

… Simon D Kyle3, … The mean SCI values for the ‘probable insomnia disorder’ category were
10.7 (SD=5.3) vs 22.9 (SD=6.2) for ‘no insomnia disorder’ (t=9.86, p<0.0001). Applying an SCI …

Sleep is an essential state of decreased activity and alertness but molecular factors regulating
sleep duration remain unknown. Through genome-wide association analysis in 446,118 …

… Cohen d standardized effect sizes were estimated by dividing the adjusted between-group
difference by the baseline pooled SD of the corresponding outcome. Assumptions of …

Chronic sleep disturbances, associated with cardiometabolic diseases, psychiatric disorders
and all-cause mortality 1 , 2 , affect 25–30% of adults worldwide 3 . Although environmental …

Our sleep timing preference, or chronotype, is a manifestation of our internal biological clock.
Variation in chronotype has been linked to sleep disorders, cognitive and physical …

… )), diminished subjective well-being (difference in mean sd units of –0.29 (se 0.06)), and
greater depressive symptoms (difference in mean sd units of 0.42 (se 0.08)); all associations …