this could be a sign....i know with my son i slept the last month away it seemed....2 days before he came i was up cleaning like crazy and refolding his clothes...i had an amazing burst of energy and started convincing myself he was never coming
My daughter noticed this days before she went into labor. The day before, she slept almost all day. Good thing too since she was in labor for 2 days!
Not definate, but could be your body is going to need the energy for labor so it's possible. Also, your baby is growing more rapid than ever before. I have read that the baby gains half of it's total weight within the last month/weeks of pregnancy, which could be exausting for mom. I am 33 weeks and have been really sleepy too even napping and I am not a napper more of an insomniac. :)