Hi, I was reading through some posts and I saw yours, and seeing Im not that far from once having a 3 week congo. When I had my congo I actually keep him in a shoe box with paper towel because he wasnt strong enough to perch on his own and slept right beside me on my night stand lol. But when he started sleeping in his cage, I usually just tell him "nite nite, sleep time" and he'll still be swinging around or hanging around whistling or whatever but i'm guessing he understand that when his cage gets covered and the lights go off and I put the radio on for him lol he eventually settles down then goes to bed, which then becomes routine. Also when Ziggy was just beginning to sleep in his cage for like the first month or so he use to sleep weird lol meaning hang off the perch like he was going to fall off so maybe it's just something they do as babies. And another helpful tip would be to line the flooring pretty cusiony with like paper towel then some news paper on top, if your african is that young, cause the last thing you want is for them to climb up and fall down and hurt themselves, you can also keep the perch low until your african gets older. And birds just like you and I we move around in our sleep so will birds, but I don't think you have much to worry about. Hopefully I've helped