My son sleeps so good at night... He only wakes up about 3 times every 4 or so hours to eat and he…

My son sleeps so good at night... He only wakes up about 3 times every 4 or so hours to eat and he always goes right back to sleep but when he's sleep I'm for some reason wide awake then I get really sleepy during the day! That's so weird I didn't expect my sleep to be off like this after I had my baby!!!!!