hi faye, congrats! when I had my little boy I was told to feed every 4 hrs when they were this age. although I ended up having to wake every 3 hrs bc he was a sleepy, tiny baby & was a bit jaundice. I had my baby in winter, so every 3 hrs in the heat sounds like a good idea. To wake I would unwrap & place him on the floor to stretch, roll around & he'd eventually wake enough for me to feed. If he fell asleep, I'd have to repeat floor time. Changed nappy in between boobs to wake again. If he was super sleepy, clothes would come off & wet face washers would come out. The cold air on his body would wake him, so if you have AC, you could try turning it up?