Role reversals

I've noticed something strange with sleeping like this, Tino and I have changed rolls. He is now having trouble waking up, is dopey in the mornings and get's sleepy earlier in the evening.

It's wierd because he's always been the other way.

I think he might have jumped into sleeping 4.5hrs in the second phase too quickly.

Last night we didn't get to sleep biphasically (or tonight) we slept 6 hours straight instead, which I seemed to be okay with.

I wonder how much of this might be psychosomatic?