Not ridiculous at all. A fact. Some have more energy somehow than others too. We would be millionaires if we could find the 'exhaustion' solution. Even not having the current responsibilities that you have, I have a difficult time allowing time for those quiet, relaxing moments and projects/hobbies. I do what I can. I often start something and keep what I started out to continue on tomorrow. I decided that I don't have to try and finish everything in one blow.

But, it doesn't hurt to have that 'emergency to-do basket' handy, though.
Snuggling with young children sounds so nice/warm. Mine are too old now for me to have that option. I can sure remember those days though. Very much a happy place in the mind for me.