Ginger root helps sometimes (they have capsules) but causes heartburn sometimes too. I took Zofran and I was great. No where near as much nausea and it doesn't make you drowsy like Phenergan does.
Morning sickness can occur at any time of the day, make sure you're drinking enough water & dont eat anything too heavy before bed keep some crackers by your bed & laying on your left side as long as you can will kind of stop the nausea for awhile