A nightcap and complementary therapies may help sleep. Also, I sleep best with blackout blinds or blackout lining on curtains. In addition, I usually turn the wifi off, take all plugs out and turn any mobile devices off.
A pleasant tasting drink at night is warm almond milk with half a teaspoon of turmeric powder, a little pinch of ground black pepper, half a teaspoon of ground ginger or slice of root ginger, half a teaspoon of cinnamon and half a teaspoon of honey added at the end (only add honey if needed). Simmer and drink warm. Cheers!