Insomnia and the ability to nap the afternoon away is a perfectly valid combination.
If a little frustrating. I’ve worked out that my optimum activity level is something around 7500-9000 steps a day: enough to earn a free hot drink at Starbucks (hello peppermint hot chocolate!) on the health insurance each week. More than 9000 steps and I’ll be tired the next day. More than my “usual” 10,500 and I need a nap right now.
Ability to sleep on the train: enormous. Ability to sleep in bed? Not so much… weird.