Why does he tend to text me more at night?

Anonymous
I've been talking with this guy for a few weeks and he usually texts me earlier in the morning before he goes to work or just when he's up. We talk back and forth for only a little bit then later in the afternoon we sometimes text a lot or not much at all until night time. I understand we both have lives and that's fine but I just wonder why sometimes he texts so late. He doesn't say anything sexual by the way it's just a normal convo. Yesterday we only talked a little in the morning then didn't text me till like 12 30 at night and we texted a little bit asking how my night was etc but then he said he was really tired and he fell asleep. Then in the morning he texted me saying hey beautiful. I know he's into me but I'm just wondering sometimes if he there's a reason he does text more at night. Do any of you other guys do this?
Updates
+1 y
Oh and he usually doesn't even text till 12:30, he falls asleep a little before so I was surprised to even get a text lol
Why does he tend to text me more at night?
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