There is nothing worse than going to bed with an upset stomach. The night's sleep is usually atrocious and you wake up the next day feeling pretty average.
A hot tip, literally, is placing a heat pack (or hot water bottle) on your stomach an hour or so before bed and when you go to sleep.
This will help to alleviate discomfort and edge along digestion.
In fact, nights with a heat pack on your belly can be quite dreamy indeed!