Not Sleeping Through the Night

Tai usually sleeps very well through the night, although his snores are loud enough to wake the dead, but at least he seems to sleep well. Recently he has started getting up in the middle of the night... to play. He will wake us by licking an arm, a leg, a face, whatever is exposed. And if we don't respond quickly or decisively enough, he starts pawing at said arm, leg, or face. Silly me, at first I thought he wanted to go out for a pee, but when we got out of the bedroom, he scampered for his toys and threw them around with wild abandon, hoping I'd join the fun. I didn't. I couldn't. I was still half asleep, so I led him straight back to bed. Within a minute, he was in the land of slumber again... albeit a very snoring slumber. We've been going through this almost every night lately. It's hard to ignore someone licking your face!!