Two bottles of Cotes du Rhone, the iplayer, bit of Amazon Prime, bit of Radio 4 depending on mood. Pop the first one at 8pm, don't pop the second one until 10 pm and hit the hay at midnight. Do this every other day for two weeks and you will never have any trouble sleeping again. You won't become an alcoholic but you will discover exactly how much decent French medicine it takes to slow your brain own and make it demand you climb the wooden hill.
Do you listen to podcasts? There are loads from Radio 4 to choose from. Documentaries and File on 4 are particularly good to get stuck into. I find they help me "switch off" from whatever has been keeping me awake.