I suspect we focus too much here with good old Methodist values around improvement and work. I seem to recall a study in Arnemland (North (wet) Australia) where the indigenous population spent about 10% of their time hunting and gathering - not an 8 hour day by any means. Two points: this was normal, but of course their numbers were controlled by inconsistent weather. The feast and famine cycle over the year mean even that 10 was not evenly distributed. The people are also of course nomadic, but not as much as you might think in that the procession follows a 'route' which looks much like the seasons in agricultural society. I suspect medieval society also partied hard, and bitched about their love life mostly, with the local brute squad creaming off most of the men for their wars, or disease or crop failure decimating the population every few generations.