Our 7-month-old baby always begins to move after the first 40 minutes of his night sleep (at 9pm). If we can't manage to maintain him sleeping then this breaks his all sleeping routine and he sleeps very late which is bad for him (and for us!). We generally give him the feeding bottle. Although he drinks very little, the bottle helps him relax and he continues to sleep.
I wonder why this might be happening? Anyone with similar experience? Is there a way to prevent this?