A tip that I have learned over my many years of camping is to change your clothes right before you get into your sleeping bag. This is a natural tip because it has been shown that the oil from your skin on the inside of your clothes that you have been wearing all day make you feel colder.
So, by changing your clothes right before you get nestled in for the night will help your body keep itself warmer as it does not have the excess oil to hinder it.
Your clean clothes will keep you warmer during cold nights out in your tent. This should help you wake up ready to take on a day’s worth of awesome outdoor adventure.