No Capo
These are the chords I use, but again any suggestions are welcome.

   F5    D5    Bb5   C7(?)
 | --1----1-----1----------------------------------------------- | 
 | --1----3-----3----1------------------------------------------ | 
 | --2----2-----3----3------------------------------------------ | 
 | --3---------------2------------------------------------------ | 
 | ------------------3------------------------------------------ | 
 | ------------------------------------------------------------- | 

Undead eyes... 

INTRO: 
F5  D5  Bb5  C5

VERSE:
          F5
You made a promise 
            D5
a promise to me
           Bb5
my darling angel
         C5
you just couldn't keep

                 F5
I just wanted to love you
           D5
have you forever
        Bb5
being together
         C5
just you and me 
  
But you couldn't take it 
didn't want me no more
now my body is hiding
cold under your floor

And now that it's over
you're never alone
so sorry to tell you
this is where I belong

CHORUS:
          D5
Oh, sleep tight my boy
    C5 
you should've though it out
       F5 
oh you can't kill a girl
            D5
without her soul sticking around

Oh sleep tight my boy
I've been watching
with undead eyes
(undead eyes)


VERSE:
       F5
Well I pleaded and I cried
        D5
I don't wanna die tonight
        Bb5
but you didn't listen baby
         C5
when you put out my lights

Oh, little did you know
Our true love would last
when you ripped my bloody heart out
and you threw it in the trash

CHORUS:
Oh sleep tight my boy
you should've though it out
you can't kill a girl 
without her soul sticking around

Oh, sleep tight, my boy
I'll be watching
With undead eyes. 

F5 Bb5

BRIDGE: 

         D5
It don't matter boy
          C5
if you're begging me to leave
         F5
well, it looks like 
         D5
love has knock you right down on your knees

You silly boy
you should've listen as I screamed
well you thought that you avoided it all
and now I'm all that you see

CHORUS:
Oh sleep tight my boy
you should've thought it out
you can't kill a girl
without her soul sticking around 

         D5          C5
Oh sleep tight my boy
        Bb5
I'll be watching
--              ( F5 )
with undead eyes...

END:
F5   D5  Bb5  C5
            Undead eyes
F5   D5  Bb5  C5
            Undead eyes
F5   D5  Bb5  C5
            Undead eyes
F5   D5  Bb5  C5          Dm(?)
            Undead eyes