Abhy’s Reviews > Why We Sleep: The New Science of Sleep and Dreams > Status Update

It's not actually bad if you are sleeping late I guess. It's a biological trait that we acquired from evolution. What's important is that you get enough sleep - that is, 8 hours on average. Night owls tend to be so diverted from the current world, it's hard to get enough sleep and in time, owls have to face consequences of sleep deprivation.