I Have A Question About Gaba. During Deep Sleep, Dopamine

I have a question about gaba. During deep sleep, dopamine is released which stimulates dreaming and allows our body to be entertained while the brain goes through its rem process. However, doesn't gaba deactivate dopamine? Is it possible that dopamine and endorphins are released in conjunction with elevated gaba levels to make sleep pleasurable and thus keep us down and asleep?