It heavily depends on the kind of dog you get. Pugs can sit around a couple days and go on a walk the next. My aussie can sit around one day and be an upset mess the next, and I pay for it in my sanity!
Personally, my dog is completely restored with energy by the time the next day rolls around, so I could exhaust him all I want today but tomorrow he'll be just as ready to go.
What kind of dog are you planning on getting? Do you want another lab? Labs are pretty versatile but they're also pretty varying. You could get a laid back lab or you could get a very high energy lab.
Personally, my dog is completely restored with energy by the time the next day rolls around, so I could exhaust him all I want today but tomorrow he'll be just as ready to go.
What kind of dog are you planning on getting? Do you want another lab? Labs are pretty versatile but they're also pretty varying. You could get a laid back lab or you could get a very high energy lab.