Chords used:
     G: 320003
     Cadd9:  x30010
     Em7: 020000
     D:  xx0232

Strumming pattern: DUUDUDU
Capo 2
If you don't have a capo, you can raise the song 1 full step, making the chords A 
(x01230), Dadd9 (977778), F#m7 (102340), and E (023100).
You could also simplify it by using D (xx0232) and a simplified version of F#m (xxx222).
If you use D and the simplified F#m, it won't sound as good, but it will still sound decent.

Intro: G (DUUDUDUDUUDUDU) Cadd9 (DUUDUDUDUUDUDU) G (DUUDUDUDUUDUDU) Cadd9 (DUUDUDUDUUDUDU)

GDragon (320003@1)tales and "The water is wide"
Cadd9
Pirates sail and lost boys fly
Em7                DFish (xx0232@1)bite moonbeams every night
     Cadd9And (x32030@1)I love you

Cadd9
Godpeed, little man
     GSweet (320003@1)dreams, little man
       Cadd9Oh (x32030@1)my love will fly to you each night
   Em7 D (xx0232@1)  Cadd9On (x32030@1)an-gels wings

Godspeed
    GSweet (320003@1)dreams

GThe (320003@1)rocket racer's all tuckered out
Cadd9
Superman's in pajama's on the couch
Em7                   DGoodnight (xx0232@1)moon we'll find the mouse
   Cadd9
and I love you

Cadd9
Godpeed, little man
     GSweet (320003@1)dreams, little man
       Cadd9Oh (x32030@1)my love will fly to you each night
   Em7 D (xx0232@1)  Cadd9On (x32030@1)an-gels wings

Godspeed
    GSweet (320003@1)dreams

GGod (320003@1)bless mommy and match box cars
Cadd9
God bless dad and thanks for the stars
Em7                   DGod (xx0232@1)hears "Amen" wherever we are
  Cadd9 (once)
And I love you

Cadd9
Godpeed, little man
     GSweet (320003@1)dreams, little man
       Cadd9Oh (x32030@1)my love will fly to you each night
   Em7 D (xx0232@1)  Cadd9On (x32030@1)an-gels wings

Godspeed
Em7
Godspeed
Cadd9
Godspeed
      GSweet (320003@1)Dreams

Cadd9  (DUUDUDUDUUDUDU) G (DUUDUDUDUUDUDU) Cadd9  
(DUUDUDUDUUDUDU) G (D)