Woman of my dreams, I don't sleep so I can't find her
On a metaphorical level, the woman of his dreams is the perfect woman for him.
On a literal level, Wayne is getting no sleep (we don’t know if voluntarily or not), so he can’t dream, nor meet the woman of his dreams.
Wayne was also addicted to both cough and sleep medicine before his time in jail. This verse could be also referencing his struggles with insomnia (that’s why he doesn’t sleep).
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