Using a New Code #1

1. _ - _ _ -
2. _ _ _ _ _
3. _ _ _ _ -
4. _ - _ - -
5. _ _ _ _ _
6. - _ - _ _
7. _ - _ _ -
8. - _ _ - _
9. _ _ - _ _
10. _ _ _ _ _
11. _ - _ _ -
12. _ _ _ _ _
13. - _ - - -
14. _ _ _ _ -

15._- - - _

16. - _ - _ _
17. _ _ _ _ _
18. - _ - _ _
19. _ - - _ -
20. _ _ _ _ _
21. - _ _ - -
22. _ - - _ _
23. _ _ - _ -
24. _ _ - _ -
25. - _ _ _ _

 (I am tired.  I want to sleep.)
This code uses - to represent on and _ to represent off.