Hi my flight is on Sunday morning 11 am I would like to reach airport by 11pm on Saturday night due to my public transport options. I have one and half year old baby with me. Is there any lounge I can relax for few hours before my check in .. thanks

There are hotels nearby and affordable too...you cannot go through security to the departure halls, till you are checked in, the airline check in desk will not be open until a few hours to reporting time. but you can descend the escalators to the arrival hall. There are seats there and you will find other passengers sleeping or waiting too. There are also airport staff around at the arrival hall.

better look for hotel nearby. lounges require membership and will close between at least midnight and 5 a.m....