Literally I do not know how my 5 week old functions. He has days where he does not sleep in the day. I kid you not today since 9am he's had 45 mins sleep. I've tried a sling, pram, the car, his cot. He dozed for 5/10 minutes then PING his eyes open & that's that. He eats like a horse & generally at night isn't too bad but how the hell can a brand new baby function with no sleep?! Is this ok?! Surely he needs the sleep?!