Tranquility blends a fusion of limeflowers, hawthorn berries and fennel. There are lots of herbal teas on the market, try some out and see which you prefer. Freeze-dried hops in hot water is also recommended.

Dr Geoffrey Henning of drug pharmaco Roche recommends an unsweetened biscuit - like a Rich Tea - if you can't sleep. It takes the blood away from your head to your tummy. Milk products also relax you, but go easy on the sugar because it can give a sugar and energy rush which makes you more buzzy.
Lettuce has a touch of laudanum in the stems so that's why this is a good nightcap. Watch the fish...