my baby is now 5 months old now but still her sleeping pattern did not improve, she doesn't sleep at night, she sleep in the morning at 8am till 12 noon and after taking bath she sleep from 2pm to 5pm and in the night from 11 pm to 2am, she doesn't sleep at night from 2am till 8am. This is being repeated daily and overall maximum she is getting only 10 hours sleep, how to improve her sleeping pattern so that she sleeps tight in the night and increase the sleeping hours? she is chewing her hands continuously, starts getting hiccups as and when she laughs. kindly suggest is it normal?