Infant clothing help

Amy

I'm a FTM and desperately need some advice about buying clothes. I'm due in August and live in a hot climate. For sleep I plan on swaddling/using sleep pods. What should I buy for her to sleep in? Sleep and plays with feet or just short sleeved onesies? I keep the house around 68-72 degrees. Also if anyone can give me advice on how many NB, 0-3M, and 3M clothes I should start out with? I appreciate it so much!