Back before the pandemic, I used to bike to work every day for about 12 years, regardless of the weather. I loved it, and I was in such good shape - one year I randomly decided to head off on a 160 km ride, and did it with no training at all - I was already fit enough that it was no problem (I was good at riding for long distances but always pretty slow).
Then the pandemic hit, and I changed jobs, and I no longer ride to work. So now walking is my main form of exercise. When I have to go in to the office, I walk to and from the train station (about 20 min each way), and on the way home, it’s a pretty decent uphill. My husband and I also try to go for a walk around the neighbourhood every day (our regular route is about 4 km).
I also horseback ride once a week and weightlift once a week.
I noticed the past few days when I was sick and wasn’t walking - it was taking me a lot longer to fall asleep and I was waking up at night more. Yesterday, we went out for our usual walk, and I slept great. I find exercise during the day is the best predictor of how I’ll sleep at night - I basically need to treat myself like a high-energy breed of dog. Tire me out so I’ll sleep!