My DD is almost 6 months old. We have a routine in the evening of bath bottle bed. She usually falls asleep on the bottle and we put her in the cot. Ping .. 30 minutes later, she's awake and we go in and settle her either with the rest of her bottle or with just a cuddle if she drank the whole bottle or a bit of bf. Then she's down for the night with a dream feed and sleeps through till 6.30 - 7am. Why the half hour waking? I know that sleeps cycles can half an hour long but why just the once? Any suggestions to help stopping this. BTW I know I am very lucky that she sleeps at all but it's just a wee bit strange that wakes after half an hour regardless of what we do. Thanks