All I want to do is sleep!!!

Had to call in sick for my closing shift tonight from work because I've been so nauseas! And all I want to do is sleep! The last two nights in a row I've had closing shifts (meaning I'm off around 2am). I laid down for a short nap and knocked out!! Woke up for about 30 minutes and then fell asleep again! Haha I guess my body is just drained. But anything for the baby!!!