At 5 months my DD extended her awake time and dropped her cat nap as her naps were getting shorter and she was fighting them. She generally wakes at 7am naps and 9.30am&2pm and bed at 7pm. HEr awake time is 2.5hrs before AM nap, 3hrs before PM nap and 3.5hrs before bed. Her naps are 1.30mins to 1.45mins long.