trtment hrssleep
a 5.6
a 5.7
a 5.1
a 3.8
a 4.6
a 5.1
b 8.4
b 8.2
b 8.8
b 7.1
b 7.2
b 8
c 10.6
c 6.6
c 8
c 8
c 6.8
c 6.6