3 ms·
Often when you wake up after sleeping longer than usual (say more than 9 hours) you feel tired because of dehydration. Your body loses a fair bit of water while
by just-a-rascal 15y ago
Often when you wake up after sleeping longer than usual (say more than 9 hours) you feel tired because of dehydration. Your body loses a fair bit of water while you sleep, so that might be reason you feel bad after a lie-in.
- Arelius 15y agoI have anecdote to confirm this. I stay well hydrated, and drink more water than most people I know, will generally sip on a glass by my bed, and have a glass of water by my bed at night. I have also been able to sleep over 12 hours (generally waking up at least once to use the restroom and water) Yet I feel fantastic when I do such!