Weco, I think your misunderstanding me, I have no limitations. Im more then willing to get the proper set up here. I'm asking what size sleep cage I should get? I only said I have the 3'x2' cage and IF it could work for only a sleep cage great. If not then ill purchase the proper one. The height is around 32" so that will not work. I am not assuming anything I'm just asking questions so I can make this the best possible living arrangements for him. So what size, style cage would you recommend for a sleep cage? he will only me in it during sleep time. I've read of people using large dog crates for their sleep cages but, what your saying is to small, correct?
Where I was having a problem was the the presumption that a particular bird would accept a sleeping posture that is not natural to its species.....a blue & gold macaw in a somewhat restricted horizontal position.....granted, there are pics of different birds sleeping on their backs, on their sides and even prone, but those are after-the-fact pictures, not of birds that have had these sleeping accommodations designed/built for them, before their arrival.....I guess my thinking was originally running towards bird-safing and existing room with little major modification, so I offered information on that premise.....
Your mention of a 3'x2' cage, along with the added "he will only me in it during sleep time" led me to ask about height, figuring you were not thinking your ideas through, while I'm thinking "a 3' long bird that does not recline naturally, why are we hypothesizing that the bird is going to agree to go in this tube style cage that essentially is only going to let it lay in a prone position, without letting it turn/move around.....
I am by no means closed minded and am used to thinking out-of-the-box, so to speak, that is why I felt you needed some type of ventilation in your closet styled cage container...and...knowing the normally styled closets designed into older U.S. homes, especially when the given closet has an enclosed/insulated heat source that will be introducing an additional heat factor into this closet/cage configuration.....I was at a loss, trying to rationalize that a couple of inches of space above and below a curtain hanging across a front opening is going to provide any measure of proper ventilation.....then there was the the mention of two windows that could be opened and the suggested use of a fan or fans, I just thought it best to back out of the discussion.....
I had thought that the black-out curtain was to restrict light.....if fans are introduced, there's going to be a fluttering of this curtain and unless the fan(s) are inside the closet, there will be little ventilation/cooling that will go on inside the closet.....as to assuming the open windows will satisfy the necessary cooling/ventilating requirements, you'll probably need one of the suggested fans mounted in an open window, but then, you're going to have to again contend with the fluttering black-out curtain.....the last problem I didn't think was being considered was what actually was being/needed to be arrived at as far as all this suggested, potential ventilation was concerned was that two open windows do not do birds, contained in sleep cages in, by the nature of its design, an air restricted closet.....think the roiling clouds of two meeting air masses...as they meet, they begin to roll/boil back over themselves and around them, but insert a barrier (three sided closet) and things stop, even the curtain will retard the ventilation you are trying to create, especially inside the closet you are trying to ventilate.....
Thought you needed a better explanation than just leaving my responses hang.....