My 6 week old baby has been sleeping the whole day , only wakes up for feeding. Should I wake her up in the day so that she can sleep at night?

Generally, younger babies tend to sleep all day and stay awake all night. Eventually, this pattern will switch naturally but if you want to help this switch to happen sooner, you can try the eat-wake-sleep method. According to my mommy friends, this method works well and also help baby adjust to longer night sleep faster. Try the eat-wake-sleep cycle approximately every 2.5-3 hours during the day (baby will just eat and sleep at night). So you'll feed baby, have baby stay awake for a bit, then she'll go down for a nap and repeat. This way baby will not be sleeping and eating all the day long and risk not sleeping at night. This method will also help baby get used to a structure in his or her daily baby routine :)