They started dozing after discussion on developmental aid.When they were deliberating on energy and power, they were sleeping.
When they were deliberating on economic development, they were sleeping.
When they deliberated on food security, they were asleep.
When they fixed interest rate on debtor's (African) loans, they were asleep.
When they deliberated on conflict resolution through dialogue they were already snoring.
They only woke up, to support motion for adjournment and signed the communique. Of course!, they need rest, they worked tirelessly back home clamping down their opponents and critics. They spent the night strategising on the next move to subdue their opponents, embezle more resources.