So I have thought alot about this game since I laid my eyes on it and I came up with this idea.
So practically all it does is that the more you sleep you get more stamina during the next day and if you do not sleep enough or just too little you get sleep depraved and you get less stamina during the next day.
I do not know if anyone else already had this idea on this forum, I am really new so i do not know.
Anyway i appreciate feedback and suggestions 
Thereās been no other thread that talks directly to this correlation between sleeping and the amount of stamina you have, so nice one for raising it. In answer to your question, as far as Iām aware the team have yet to qualify or state that the amount of sleep you get will directly impact your stamina (in any way be that positive or negative) however they have talked to the necessity for your character to sleep. If you donāt sleep you will eventually die *that type of thing.
Buffs and debuffs are obviously very common in RPGās, so itās not a new concept. But it would be nice to get some more thoughts on this particular idea, and maybe if one of the WH guys could make comment. I think itās certainly an interesting notionā¦
Sleep doesnāt work that way. Stamina doesnāt work that way.
Why introduce clearly contrived buffs/de-buffs?
Sleep deprivation could have an impact on cognitive function, so fewer or less creative conversation choices, etcā¦
So based on that logic, youāre suggesting that sleep deprivation and the resulting fatigue have absolutely no impact on physical stamina and or performance?
Sleep directly facilitates good cognitive ability and function. Therefore stamina and physical performance are intrinsically tied to sleepā¦ Itās science dude
Yeahā¦ noā¦ stamina is not directly impacted by lack of sleepā¦ I can go 2 days sans sleep and still manage to hammer out a 10k in the same time. My focus, balance and ability to manage complex tasks without freaking out, however, or severely impaired.
I guess were just going to agree to disagreeā¦ But to quote the US National Library of Medicine;
āā¦ Although it is well established that sleep loss has negative effects on mental performance, its effects on physical performance are equivocal. This review examines the latter question in light of recent studies published on this problem. Sleep deprivation of 30 to 72 hours does not affect cardiovascular and respiratory responses to exercise of varying intensity, or the aerobic and anaerobic performance capability of individuals. Muscle strength and electromechanical responses are also not affected. Time to exhaustion, however, is decreased by sleep deprivationā¦ā
Time to exhaustion and stamina are almost one and the same, wouldnāt you say 
Stamina is a measure of your ability to perform a physical task for a prolonged amount of time and the time your body takes to recover immediately following said task.
For a relatively fit individual, your mental agility will degrade long before your stamina.
Iām not saying sleep isnāt important or that there shouldnāt be a reward system built around it - Iām saying stamina is the wrong reward.
Sleep deprivation reduces concentration, shortens tempers and may also provide hallucinations. Accuracy, perception and conversation options are a far more realistic reward mechanism.
Some people also need more or less sleep than others. But yeah, specifically tying the amount of sleep to your stamina does not really make the best sense.
It may fit to connect sleep to how refreshed your mental state is, but I donāt even know if thatās going to factor into the game or not.
ā¦or, possibly, healing?
āSurvival is not exactly annoying, but at the same time it plays an important role,ā said VĆ”vra. āA day in-game will take about an hour-and-a-half. You will have to sleep at least once every 48 hours or else youāll be very, very tired. If you donāt, youāll still be able to walk and do stuff, but your stats will be much lower than usual. Itāll be harder for you to fight. Sleep, meanwhile, gives you an advantage. Youāll get a boost. You can prolong waking time by drinking alcohol or some potions to boost you up, but there will be drawbacks. When the effect goes away, youāll be even more tired.ā
hahaā¦ love it!! 
Iām so pleased that this will be included, I am tired of games that give you the option to sleep and continual time tracking and time related events but donāt have any use for sleeping. Itās unnatural and although it sucks to have to sleep, the fact that you have to, makes it more realistic, itās like prepping magical potions before you do something, except real and relatable.
