Water loss during sleep?

Do you lose a lot of water during sleep? I've thought about chugging a bottle of water every night before bed as a way to flush out my system from the day.

Anyone?

I do chug water before going to bed but less so now that I have also consciously increased my overall water intake.  But I like to keep the water next to my bed and sometimes I wake up mid-night and need to throw a glass or two of it back. It used to be the only time of day I drank water up until a few months back! Amazing how I was living my life before.

During the night we perspire and respire. I am pretty sure that's where the water weight goes.

Anyway, drinking before bed is fine if you want but you will likely get up at least once during the night to run to the loo, like I do. Sort of a pain.

I think it's better to drink your 2L all throughout the day, some of which would be of course before bed.

Thanks nycgirl. I drink water throughout the day, but was curious if I drank more before bed to help flush it out more, if that would be beneficial or not.

I think it's a good idea to drink some amount before bed. Afterall you won't be consuming liquid for 6-8 hours. However, some people don't want to wake up mid-sleep to use restroom, so just balance what you want, more hydration or more uninterrupted sleep. If you are getting 2L a day otherwise it won't matter too much if you drink before bed as that's more than you need anyway.

The best water tip I've heard was from an exercise magazine about 10 years ago.

Have a large glass (500 - 600 ml) before you go to bed.  Not so much that you have to get up and use the washroom because your sleep is just as important, if not more important, for your weight loss/weight gain goals.  You can increase your immediately pre-sleep water intake until you hit the point where when you wake up first thing in the morning, you are about to burst. 

Then leave a liter or so of water on your nightstand.  Then when your alarm goes off in the morning, reach over and grab the water and chug as much as you can.  You'll probably be able to get close to the whole liter down over the course of 2 minutes or so.  At that time, run to the washroom and empty your bladder.  By doing this you've basically brought in about 1.5 liters and only taken up about 4 minutes of your day doing so. 

But is there a maximum amount of your body can absorb/use before simply expelling it, as with vitamins?  Granted, water is, well...water, but I'm curious what the advantages (or disadvantages) of drinking a lot of water at once versus a cup or two at a time throughout the day are.

i thought it was better to sip it throughout the day? i thought your body can't use large amounts of water at once?

here is something that i just read...

FIRST magazine, for women on the go...August 20,02007 :

It is a lengthy article on the benefits of drinking water throughout the day, and alternating the temperatures of the water. 

Hot water:  triggers a body-wide detox.  Toxin levels rise in your body and are stored in the liver, lymph system, intestines and skin.  They claim that this can slow your metabolism, and that flooding your GI tract with heat, promoting peristalsis, can aid in ridding the body of these toxins more quickly.  Hot water also makes pores open slightly, allowing toxins in skin to evaporate.

Lukewarm water: suppresses appetite.  Expands the stomach lining, sending a message to your brain that turns off hunger pangs.  The fact that is lukewarm makes it easier to down an entire glass before a meal.

Cold water:  gives your body a workout.  As we all know, our bodies have to heat up the cold water we drink.  This article claims that your metabolic rate jumps by as much as 3 percent within 10 minutes of finishing a glass of cold water, and stays elevated for 30 mins.

Suggestion: (from article)

1.  start the day with 8oz of of boiling water poured into fresh squeezed lemon juice and tsp. of grated lemon zest. 

2.  Alternate steamy and icy water throughout the day, between meals.

3.  Drink lukewarm water (8oz) 15 mins before a meal. 

water benefits us in many ways, why not take advantage of all?

read the article for all of the details...