My 6 week old does not sleep through the night no matter what the past few days. Bedtime is at 10pm, he will sleep until 1am, eat and go back to sleep until 3am to eat again and will literally stay up until 7 or 8am. Ive tried swaddling him, on his bassinet, putting him on my chest to sleep, but does not work. Will wake up at 10am to eat, stay awake for about 1 hour, then go back to sleep and continue like this every 2-3 hours. around 6pm I bathe him and I keep him up until bed time for 3-4 hours. Please tips and advice