Jesus dismissed his disciples – so he could pray.
He dismissed a crowd – so he could pray.
He apparently prayed for a long time (between 3-6 AM is when he re-joined the disciples according to The ESV Study Bible, which is so huge I assume it knows). He didn’t always pray for a long time (Lazarus Story).
Lord, please help me take seriously your promise to repay me if I will just get alone and pray to you the way you encouraged.