sleep texting

Do any of you sleep text? I don't sleep talk but I'll wake up and look at my phone, and it's only to my boyfriend, and there will be a weird message that I don't remember sending. 
Once in a while I do remember being half awake and typing it, that's how I know it's me. But I'll message him things like normal, usually very hard to make out because the spelling is off. 
A while ago I guess I sent something that freaked my boyfriend out though and he was spamming my phone and my mom's phone asking if I was okay, all I messaged him was "I talked to men similar to him before, and he is no threat." 
Anyone else do this? 

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