@Macaroni46
Run for the hills, he sounds unhinged and weird and obsessive and controlling.
And you have to be some kind of inconsiderate thoughtless selfish pillock to be texting at 4am. Who the fuck does that? 
I reckon it's the same kind of twonk who, when they have to be up for work at 5.45 am, (to get there for 7.00am,) bangs about for all they're worth, slams doors, leaves the car engine running for 10 minutes, revs the car up as loud as possible as they drive off, and beeps the horn. Basically, this 'if I am up, every other fucker can get up too' attitude.
Or the sort of person who plays their music as loud as they can, and to hell with everyone else, or who starts DIY at 6.15am, and is still doing it at 11pm. So bloody selfish and thoughtless.
Anyone texting me at 4am will have their number blocked instantly. I have had a couple of people do it before, AND a couple of companies. Not bonkers enough to text at 4am, but texting at 6.30am and 7am. BLOCKED. All of them.
As someone said upthread, you wouldn't call someone's landline at 4am, so why text them at that time. Such a load of tosh to say it's 'not in real time.' Of course it bloody is... especially as some people keep their mobile phone by their bed.
And as a few posters have said, why should people keep their phone on silent, because of certain inconsiderate pillocks, who are arrogant and ignorant enough to send texts at 4am? And I agree with other posters that it is NOT easy to 'just drop off back to sleep!'
Oh and I have a landline, and many others I know have one too. Awful mobile phone signal here in the sticks, so I need one, and so do plenty of others. I get sick of this 'nobody has a landline now' bollocks people spout. Just because YOU don't have one, doesn't mean everyone else doesn't have one FGS!
And people can bore off with 'people sound hysterical' comments, just because someone thinks (QUITE RIGHTLY) that texting at 4am is ridiculous and inconsiderate and bloody rude. Especially as some people keep their mobile phone near to them in case of emergencies. Who the fuck wants to be woken by some inconsiderate, selfish pillock who can't wait til a reasonable time to send their text message?