Indian Railway has 5 types of sleeper coaches in that Four are AC coaches and 1 is non AC coach. Third AC (Three Tire AC) Third AC (Economy) Three tire AC Second AC (Two Tire AC) and First AC Sleeper Coach (Non AC) First AC (First AC) First AC coach is having separate cabins with door facility. This Coach can have up to 5 cabins for 2 berths which are called as Coupe. And this coach has up to 4 cabins for 4 berth which are called as a cabin. Seat Dimension is as below Lower Berth: (185 X 67) CM Upper Berth: (182 X 64) CM the gap between these two berths is 83 CM. A Separate cube/cabin if you have 2 members or 4 members travelling will provide you comfort and peaceful journey without any disturbance. Second AC (Two Tire AC): AC Two Tire Coach has 46 Berths in ICF and 54 in LHB. It may have 2 Indian styles and 2 western style toilet as well. There are 8 compartment is IFC coach and 9 Compartment in LHB coach. Each compartment has 6 berths. 4 berths are inside and 2 are Front sid