Cappo: 5th 
Chords used:
                E A D G B e
                -----------
        G       3 2 0 0 3 3
        C       0 3 2 0 1 0
        Em      0 2 2 0 0 0
        Cadd9   0 3 0 0 1 0
        Dm      0 0 0 2 3 1
        F       0 3 3 2 1 0
Slightly higher than the original..

            G5 
Close your eyes
           C5  
Get some sleep
            E5
It's too late now
      C5
To change anything
           G5
But it's alright
            C5
 Get some sleep
           E5
 It's so dark outside
      C5
 So close your eyes
               D5   C5  F5
 And feel the world turn round
                D5
 If you're not lost
    C5                 F5
 I guess that makes you found