Izzy is almost 3 years old and she get the same amount as yours. Day care is too costly so I take her 1-2x max per week (more 1x per week) and on the weekends I will take her at least 1x to a big dog park (if the weather allows). Other than that I will walk her 3x day (in my apartment complex where sometimes we see other pups). But that's pretty much it... we tend to do more things in the summer time but now its cold, raining all the time so it limits our activities.
She does sleeps all day.... I even installed a camera at home to watch her activities until I realized she sleeps until 4pm!