My 17 month old lab/terrier mix has always slept in his cage in the living room at night. My wife and I decided to give our dog a break from that once in a while so we started to let him sleep on our bed on weekends. Lasy night, he was put in his cage after sleeping on our bed Friday and Saturday night. This morning he appeared anxious and he didn't want his favorite treat. After about a half hour, he came around and was his old self again. Is this part time arrangement confusing or upsetting him?