Hello Fuckoff,

Most people blame restless nights on stress, screens, or an old mattress. The real culprit is something almost nobody talks about: how hydrated you actually are.

Hydration gets treated like an afterthought — something you sip in the morning, forget by afternoon, and never think about at night. But that's exactly when your body needs it most.

I actually wrote an entire book on this — Sleep, Drink, Breathe. It's on sale on Amazon right now, so check it out while it lasts.

Here's what's actually happening to your sleep when your body runs low on water at night — and why it matters more than you'd think.

Your body works hard overnight to regulate fluids and keep you resting well. When disrupted, sleep suffers in ways you don't expect.

It sounds minor, but the effects can add up fast. Here's what's actually happening to your sleep when you're running low on water at night.

Your body releases a hormone overnight to help retain fluids while you sleep. When that process is disrupted, dehydration becomes more likely — and it may be linked to headaches, nighttime awakenings, and even obstructive sleep apnea. Here's what the research actually shows.