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
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.