Here is the full list of all 29 Dream achievements.
Collect all the Dream bible pages.
Visit all the side dreams.
Find the memories of an old experiment.
Find the mess on floor one.
Finish Act Three's Nightmare.
Finish Act Three.
Finish Act One's Nightmare.
Finish Act Two.
Finish Act Two's Nightmare.
Eat all the cupcakes.
Find a past project.
Finish the graveyard puzzle in ten moves or less.
Leave on all the lights before sleeping.
Show off your festive side.
Play the first bar of 'Counting Sheep'.
Finish Act One.
Finish all four mazes without getting caught.
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