sleep(hrs)
7
7.5
8
7
9
8
7
7
8
7
5
6
7
7.5
6
7
6
7.5
9
6
8
7
7
8
7
9
7
7.5
8
8
10
7.5
5.5
9
8
8
4.5
5
6
6
9
9
5
6
6
7.5
7.5
7
7.5
6.5
7
9
7
8
6
5
8
6
6