Up All Night

I guess it is about sleep-walking... Doing something all night and the next day not remembering whatever the hell you did and where you are!

But it can also have different meanings as suggested by the lyrics... Maybe it's about a man is cheating but that point of view isn't really clear in the whole song... So yeah, it' sleep walking

I wager the song is about his youth. His desire to sneaking out and party and his mothers perception of his life.

(As hes sneaking out the front door.. He was thinking/feeling:)

Wakin’ up in someone else’s bed, Was what I was waitin’ for (Hes been waiting all dayz to get some nookie, but then he notices his mom (apathetically?) watching him)

Oh my days what have I done, She saw me sneaking out the door

(He feels guilt/shame for being caught)

What have I been waiting for, Been wasting all my time Watchin’ my youth slip away Surely is a crime

(Despite the initial guilt, he feels as if hes been wasting his life up until this point. So nvm mom, He should have gone out more often/sooner. Not enjoying life while your young and free of the burdens of job/family etc - cant be right! He decides)

And no, she don’t know what we do in our spare time No she don’t know that we’ve been up all night All night, all night, all night (On his way to the party, mom doesn't really know/want to know? what hes doing when he goes out or how long hes out)

Chorus (He describes the party mindset. Party is going on)

Sun is up while I'm walkin’ home, (Its over, he's partied all night) But my heads up in the clouds (drugs? hangover? post party-high? thrill of getting laid?) Trying to get my self to bed But I really don’t know how, (can't relax after.. it seems, the great time he had)

And no, she .... All night, all night, all night (Thoughts over breakfast? He again thinks about how his mom can't imagine what he really gets up to.. and all he can think about is the next time hes out)

...

When I get myself home to my bedroom, I'm gonna sleep all day till the sunsets (He wishes to skip the chore of daily life for the thrills after dusk)

Maybe he's secretly bragging about his extramarital affair with his "other wife". The one his current wife never had a clue about. Maybe this guy is a real piece of shit?