How awake should a 6 week old be? My daughter sleeps in 5-8 hour slot.. wakes for food and often falls back asleep on the feed, she wakes in the night for a little while but that's literally all. She's a very slow feeder I'm talking hours and hours just for one feed, recently found out she has a murmur and a hernia, second doctor visit scheduled for tomorrow morning, a few days ago 111 sent out an emergency ambulance due to her sleeping for 15 hours straight even still sleeping in feeds and not waking to loud noise ect, Her observations where fine but health visitor suggests it might be worth a referral to cardiology to check her out properly.