Sleep features | n (%) |
Sleep Quality Very poor Poor Fairly Good Very good | 3.9 ± 0.6 0 0 5 4.6 45 41.3 53 48.6 6 5.5 |
Sleep duration (hours) >7 6 - 6.9 5 - 5.9 <5 |
66 59.5 40 36.0 5 4.5 0 0 |
Smartphone use (hours) 0 - 0.9 1 - 1.9 2 - 2.9 >3 | 1.6 ± 1.3 37 33.3 37 33.3 24 21.7 13 11.7 |