While the term “homeostatic sleep drive” sounds complicated ... Wickwire says that it’s a biological process that, unlike the circadian rhythm, is difficult to manipulate.

Sleep drive, also called “homeostatic sleep drive” or “sleep ... Don’t try to alter your circadian rhythm with this technique — so, for example, night owls will start and end later.

The homeostatic process ... day for adults to build up enough sleep drive, but babies may only need to be awake for an hour or two before falling asleep. The circadian rhythm is our body’s ...