Hi Happycamper
Welcome to SR
I think it's normal to have at elast a few days disruption to sleep - especially if you've been drinking for a while. I used to have trouble for a week or so before I got any 'normal sleep' - some people have shorter periods of readjustment, others longer.
No harm in seeing a Dr though if it goes on for too long or if you feel concerned.
Good for you in making the wise choice to stop
Hope to see you around some more
D