We worked out a schedule for the shifts, we will take: one person doing one shift at the time;

24 hours divided into 6 shifts, 4 hours each

Shift 1
Food J
Sleep V
Sail C

Shift 2
Food C
Sleep V
Sail J

Shift 3
Food V
Sleep J
Sail C

Shift 4
Food J
Sleep C
Sail V

Shift 5
Food C
Sleep V
Sail J

Shift 6
Food V
Sleep J
Sail C