Are you sure he's ready for bed when you put him to bed? IME with my high-needs DD, if we try to get her to bed too early it makes her wild because she gets mad.
I remember my DD's sleep getting more restless at 6 months b/c she was becoming so aware of her surroundings and on the verge of developmental milestones like crawling and standing.
I remember my DD's sleep getting more restless at 6 months b/c she was becoming so aware of her surroundings and on the verge of developmental milestones like crawling and standing.