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

   F    Dm    Bb   C7(?)
 | --1----1-----1----------------------------------------------- | 
 | --1----3-----3----1------------------------------------------ | 
 | --2----2-----3----3------------------------------------------ | 
 | --3---------------2------------------------------------------ | 
 | ------------------3------------------------------------------ | 
 | ------------------------------------------------------------- | 

Undead eyes... 

INTRO: 
F  Dm  Bb  C7

VERSE:
          F
You made a promise 
            Dm
a promise to me
           Bb
my darling angel
         C7
you just couldn't keep

                 F
I just wanted to love you
           Dm
have you forever
        Bb
being together
         C7
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:
          Dm
Oh, sleep tight my boy
    C7 
you should've though it out
       F 
oh you can't kill a girl
            Dm
without her soul sticking around

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


VERSE:
       F
Well I pleaded and I cried
        Dm
I don't wanna die tonight
        Bb
but you didn't listen baby
         C7
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. 

F Bb

BRIDGE: 

         Dm
It don't matter boy
          C7
if you're begging me to leave
         F
well, it looks like 
         Dm
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 

         Dm          C7
Oh sleep tight my boy
        Bb
I'll be watching
--              ( F )
with undead eyes...

END:
F   Dm  Bb  C7
            Undead eyes
F   Dm  Bb  C7
            Undead eyes
F   Dm  Bb  C7
            Undead eyes
F   Dm  Bb  C7          Dm(?)
            Undead eyes