We’ve all been there—opening a textbook only to find our eyelids getting heavier by the second. But it turns out, humans aren’t the only ones who find books to be the ultimate lullaby. A heartwarming video of a calf falling asleep while staring at an open book has taken social media by storm.

In the viral clip, the calf is seen sitting comfortably with a book placed on a stone in front of it. After glancing at the pages for a few moments, the little animal begins to nod off. After a brief struggle to keep its head upright, it finally gives in and tucks its head against its body, falling into a deep slumber.

According to experts, when we sit still to read, the ‘parasympathetic nervous system’ kicks in, signaling the brain to relax and rest. This phenomenon, clearly seen in the calf, is why many use reading as a sleep aid. To combat this during actual study sessions, experts recommend reading in bright light, sitting upright, and taking frequent hydration breaks.