Last night's bbc programme on sleep recommended an early morning walk/run to reset the internal clock and aid sleep. Being of a certain age I have had difficulty getting to and staying asleep for years! I usually run after work at 4pm but I might just try pre work running (6am). I have been running for over a year but sleep hasn't improved. Also with warmer weather approaching I might try early mornings if I can manage to get out if bed!