I never thought I could get into napping, since making changes to my life, I have discovered the joy of naps (admittedly I always liked them as a child). There is research to back up the positive effects of taking a nap in the day. The key is to limit it to 20-30 minutes, it should leave you feeling fresh, any longer and you could end up feeling more tired.
So this week, while juggling shift work, clients, social life (star wars went on until 2345) and chores (not been so successful on that part), I have also included some naps. And I have enjoyed them. As a morning person I struggle with late shifts, but a nap before work helps. Highly recommend it if you can!