read (oneself) to sleep
To read until one falls asleep or feels ready to fall asleep. I have to read myself to sleep each night, or else I end up tossing and turning for hours. Dad read himself to sleep in the armchair again.
read oneself to sleep
to read something in preparation for falling asleep. I need a really dull book so I can read myself to sleep. That's the kind of book I use to read myself to sleep.