(This is an easy to play version.  The key change mid-bridge is really only one 
half-step up, but I'm a beginner and so I play it like this as a full step up instead.)

        C
There's magic in the air this evening
Csus         C
Magic in the air
    C
The world is at her best, you know
     F               G
When people love and care
    F             C          F                  G
The promise of excitement is one the night will keep
      C                 F        G         C
After all, there's only one more sleep til Christmas

    C
The world has got a smile today
    Csus            C
The world has got a glow
        C
There's no such thing as strangers when
  F                  G
A stranger says "hello"
    F            C            F              G
And everyone is family, we're having so much fun
      C                 F        G         C
After all, there's only one more sleep til Christmas

BRIDGE:
G              F               C
Tis the season to be jolly and joyous
G               F                      C
With a burst of pleasure, we feel it arrive
A              G                     D
Tis the season when the saints can employ us
     A                   G                        A
To spread the news about peace and to keep love alive

        D
There's something in the wind today
       Dsus          D
That's good for everyone
     D
Yes, faith is in our hearts today
      G                A
We're shining like the sun
    G            D            G                 A
And everyone can feel it, the feeling's running deep
      D                 G        A         D
After all, there's only one more sleep til Christmas
      D                 G        A         D     Dsus  D
After all, there's only one more sleep til Christ-mas day