I Went To Sleep lyrics

Time: 1:39 Irving Music, Inc. BMI
Master #59990 Recorded 6/??/68
Brian Wilson

I took a walk and sat down in a park
The gardener walked out and the sprinklers went on
They watered the lawn and I went to sleep

Ten thirty I turned my radio on
Some group was playing a musical song
It wasn't too long and I went to sleep

Again at the park on a nice summer day
High up above me the trees gently sway
A bird flew away and I went to sleep

Submitted by Guest

What do you think is the meaning of I Went To Sleep by Beach Boys?