This is another reason a healthy diet is so important! Be sure you are eating plenty of fruits and vegetables, Limit the amount of sugar you consume, and aim to eat leaner forms of protein such as chicken, turkey, and nuts.
Another culprit of deep sleep is alcohol. It can interrupt the normal cycles and cause you to wake up throughout the night. Try to limit the amount of alcohol you consume before bedtime.
Hopefully this will help you to bag some vital zzzzzz's!