> - It looks like the predicted delta from going from a "nosleep" day to a "sleep" days is about 1.4 pounds (sleep coef minus nosleep coef). That seems fishy, o

> - It looks like the predicted delta from going from a "nosleep" day to a "sleep" days is about 1.4 pounds (sleep coef minus nosleep coef). That seems fishy, or at least like it will stop working fairly soon because you can't actually lose 1.4 pounds/day sustainably. Is it possible there's something weird going on with the data or those variables don't have the obvious meanings? That weight loss doesn't add up in the long term. You lose a lot of weight during your sleep both due to evaporation of water and by burning glucose/fat which you exhale. Obviously longer sleep translates into more water lost and more glucose/fat burned, but it will quickly be compensated by the body taking that water back up again and a larger appetite. You can't consistently lose water weight. After a night of drinking, I can lose up to 3 kilos due to dehydration. But of course, I've probably gained weight due to the calories in the booze.