When I stop cold turkey I sleep a lot for a couple of weeks (10-13 hours per day), which is really useful when I'm stressed and cannot sleep. After the two week

When I stop cold turkey I sleep a lot for a couple of weeks (10-13 hours per day), which is really useful when I'm stressed and cannot sleep. After the two weeks I behave normally again, but I never have the thought clarity that coffee gives me, so I end up going back and starting the cycle again.