Sleep affecting bbt ??? Help!

Shyann

So I tossed and turned last night. I was up at 1 o clock and then fell back asleep and woke up at 3. I took my temp, I normally take it at 4. It was 97.7. And then I fell back asleep And woke up at four and took it again. It was 97.4. I’m wondering what one would be more accurate. If either. ???