Here is how Napping time and The Family Returns goes in The Baby Twins.
Prince Isamu: (happy gaggling)
Princess Sharon: Thanks for your help, Yuna. I think I'm starting to enjoy babysitting.
Princess Yuna: What else are cousins for, Sharon.
Prince Isamu, Prince Indy and Princess Anna: (yawns)
Princess Sharon: Aw, Look at them, Their getting tired,
Charlie: You know what this means, Discord?
Discord: Time for their nap.
Then, They begin to sing "The Beddy Bye Blues".
Discord: Muzzle up your mugs
Or I'll fill 'em full of bugs
That's an offer that you can't refuse
Forget your troubles and dream
Up a dubble-brained scheme
Charlie:That's telling 'em, Discord
Discord: Shut your snappers and snooze
Charlie:Shut your snappers and snooze
All: To the beddie-bye blues
Discord: Snuff out your cigars
And thank your lucky stars
You ain't flying in some cement shoes
Think of something that's nice
Charlie: Like what, Discord?
Discord: Like a holdup or a heist
Charlie: That's nice
Discord: And take your getaway cruise
Charlie: Take your getaway cruise
All: With the beddie-bye blues
Discord: Slip into slumber
Saw a little lumber and snore
Let 'em hear you some more
With just a couple slippers
Relax your open lippers
And don't forget to zip
Your little lips with zippers
Charlie: That's beautiful, Discord
Discord: And don't go crying for your mother
'Cause now we've only got each other
So sleep, little chowderheads, please
Shut your snappers and snooze
To the beddie-bye blues
After Discord and Charlie sang the babies their lullaby.
Prince Isamu, Prince Indy and Princess Anna: (sleeping)
Princess Sharon: They sure are adorable when they're asleep.
Princess Luna: Hello? Is everything alright?
Charlie: Shh, They're sleeping.
Princess Luna: (to Isamu) Pleasent dreams, My little colt.
Hiro: Well done, Yuna and Sharon.
Princess Celestia: (to Indy and Anna) Sweet Dreams, My little ones.
Duck: A splendid job to you two, How would you like to babysit Isamu and the Twins again anytime?
Princess Yuna: Sure
Prince Indy: Yuna.
Princess Anna: Sharon
Princess Yuna: Aww, Listen to them, They said our names.
Princess Celestia: You don't mind some help from Charlie and Discord while babysitting again anytime, Do you, Sharon?
Princess Sharon: I don't mind any help at all.