Last night when I went to bed it was almost 70 degrees.
This morning when I woke up it was 50 degrees.

That’s not a terrible difference by all accounts but it does make for an uncomfortable night for me.
The sleeping gear for a 70 degree night is much different than a 50 degree night.
I woke up once to get into my lightweight sleeping bag. Then I woke up again to grab my fleece blanket and pull that into the sleeping bag with me. Then I woke up again to decide whether to take out my heavy weight sleeping bag or to give up and start layering on clothes.
Each wake up was preceded by an indeterminate amount of time spent curled up into a ball shivering before I finally woke up completely.
Not a restful night’s sleep.