Have completly forgotten what DS did, but DD is now 7 weeks and seems to be asleep most of the time. She wakes for feeds - sometimes every hour or two during the day - and has a bit of a smile and gurgle but then goes off again. She really isn't interested in lying on a mat, or babygym. Most nights she sleeps reasonably well - 4 hour stretches.
Not really complaining but would be interested in what other babies are doing.