Supply during night vs day

My son has started pretty consistently sleeping straight for about 9-10 hours at night. I’ve been really enjoying not having the middle of the night wake ups and my boobs are usually pretty engorged when he does wake. BUT it seems like my boobs aren’t leaking as much in the wee hours of the morning before he wakes so I’m assuming my supply is adjusting.

Is my supply as a whole going to tank because I’m sleeping through the night? I thought I read somewhere that my body would just not produce as much at night but daytime supply would be fine. But that doesn’t make sense to me. I don’t want to lose my supply but damn I love sleeping.