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If there's one thing we can all agree on, it's that taking care of babies is a demanding business.

New parents are always on duty, and late night feedings and fussing, leave caregivers chronically sleep deprived.

Turns out, the issue is not unique to humans, because the same thing happens to bees.

Researchers found that worker bees who care for the brood get less sleep than their sisters,

because bee babies produce chemicals that keep their caretakers awake.

The findings appear in the journal Current Biology. It seems that all animals sleep, including

the birds and the bees. Yet this daily phenomenon still remains blanketed in mystery.

The exact function of sleep is still an anigma,

but we know that reduced or sleep loss is associated with reduced performance,

health and survival.

Moshe Nagari was a postdoc at the Hebrew University of Jerusalem when he started studying sleep.

In particular, he was curious about how animals can sometimes sacrifice Shuddai when they've got important work to do, especially moms tending to their young.

Kila whale mothers, for example, follow their calves for the first few weeks postpartum and hardly ever sleep

in this time for several weeks.

Rather than swimming along with killer whales for a couple of months,

Nagari focused his attention on bumble bees.

In these colonies, a queen lays the eggs, and worker bees called nurses care for the resulting hatchlings.

To start, Nagari confirmed that when nurses were housed with larvae, they slept significantly

less than bees who didn't have babies to attend to.

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