When i worked night shift for a handling agent I tried to rest as much as possible during the day leading up to the shift. After the shift I tried to stay awake for as long as possible and hit the sack in the early getting up around 2000 for a 2200 start. This would suffice for the week. On the day after the last shift try to stay awake till the evening this will allow you to adapt back to the normal sleeping pattern.