My 7 week old daughter will not sleep at night. Nothing will work, white noise, wrapping her up tight, bath routine, lullabys, cuddles, dummy, no matter what i do, she wakes up every 45 minutes during the night. It takes half hour to feed her, half hour to wind her, half hour to get her to go to sleep, then by the time shes asleep shes hungry again within 45 minutes. However she sleeps nice long 3-4 hour stints during the day. My husband wont help at night because he works all day. I cant sleep during the day as i need to wash bottles and do the washing and cook the dinner. I keep it bright in the day and dark at night. What on earth can i do?? Im at my wits end, absolutely exhausted