Curious about LP dips

I get 1-2 nights of poor sleep in the week before my period, and I'll feel too hot to sleep.

I've been wearing a temp tracking ring for 3 cycles, and notice nights I'm too hot to sleep coincide with a little temp dip (e.g. CD25 in the image). Last night I was too hot to sleep again, but my temp this morning showed a 0.25C drop. AF isn't due for about 4 days. Is it just coincidence or is it linked to a specific hormone shift?

I get 1-2 nights of poor sleep in the week before my period, and I'll feel too hot to sleep.

I've been wearing a temp tracking ring for 3 cycles, and notice nights I'm too hot to sleep coincide with a little temp dip (e.g. CD25 in the image). Last night I was too hot to sleep again, but my temp this morning showed a 0.25C drop. AF isn't due for about 4 days. Is it just coincidence or is it linked to a specific hormone shift?