I had a deer walk right up to me within 5" while I was a sleep on a the side of a logging road and snoring. My brother about 25 yds on the same road said he had to wait until the deer slowly walked away so he could take a safe shot, which he did and scored. (His second deer that day) This was midday right after lunch which is one of the best times to be at a stand IMO.
As far as blinds, I just use ground blinds. But it would seem that you could just hang some Strips of camo cloth in front of the window. Or even a net. I have about 4 or 5 of them I buy on line and set up before a hunt in different locations.