LOL sleep when I'm not pregnant is a leisure activity to me as well so perhaps I do get more hours than I think
I think baby-free time is definitely close to 40 hrs/week for me but that's not all leisure time. Nap times are the only times I get to pay the bills, sort out our finances and other house stuff (including house back in NZ), do grocery shopping and prepare food etc etc etc. So no housework and yes I can get out without Callum but I don't consider those things leisure activities!
Hanging out on here, reading a book for pleasure, playing sport or having a coffee with a friend or a date with DH - THAT is leisure time to me