I have lost my energy and can't find it

I enjoy working with my mistress and begged her to take me with her last night, at last she did. My friends poodles are in Stockholm on a dog exhibition today so another girl, called Doris, worked last night. Last time I met her, she was in my size but now she's become smaller and fitted under me when I was standing up. Strange... Anyway, it was as much fun as the last time when we played with each other. We played all night long and rested every now and then.

I've been sleeping for 8 hours, haven't been outside or eaten. I was so tired when I came home I didn't even have energy to say hey to my master, I just fell asleep the second I laid down. My mistress said it looked like I was unconscious but I wasn't! I heard her and my master talk, I just couldn't open my eyes.

Now I wonder if I want to work again tonight or it's better to stay at home with my master. Luckily for me I don't need to decide it right now, the work begins at 21:15.

EDIT after the whole night at work: I was pretty sleepy until 2 o'clock, played a little with humans who were working and fell asleep again. It seems like I've been sleeping almost round the clock...