Reddit reviews Outdoor Research Men's Echo Hoody, Alloy, Medium

“try personal hygiene...” not sure if funny-ass or just ass, but i giggled before cringing so...

On a serious note, it does kinda exist sorta. What youve asked for covers an insanely broad spectrum of conditions but, there are some things that come close

Merino wool, from fancy brands better than cheap brands, of a very light weight, will be comfortable to sleep in, can wear during the day without looking like a technical trekking uniform, and is naturally microbial so it resists getting stninky... to a point. As for keeping you warm, well, thats a variable thats harder to measure. What works for one person may not work for another

Smartwool NTS 150 weight merino crew neck long sleeve shirts are probably pretty close to what youre looking for

Smartwool Men's Long Sleeve Shirt - Merino 150 Wool Baselayer Pattern Performance Top Light Gray https://www.amazon.com/dp/B01HMUOSNK/ref=cm_sw_r_cp_api_i_vfIMDbPWE72VF

or...

Patagonia Capilene everyday cool, or Outdoor Research Echo ling sleeve crew neck shirts are a synthetic version. Theyre not as snuggly comfy as high quality light merino wool but theyre usually cheaper and always lighter. Bonus - the Capilene and Echo stuff can be washed in a sink at the end of a day and be ready to wear in the morning

https://www.rei.com/product/143465/patagonia-capilene-cool-lightweight-long-sleeve-shirt-mens

Outdoor Research Men's Echo Hoody, Alloy, Medium https://www.amazon.com/dp/B07D5YXFLG/ref=cm_sw_r_cp_api_i_zgIMDbHQMD2CY