I have a cockatiel that I don't keep locked up, and at night he just finds a corner of the outside of the cage to sleep. But I wake him during the night when I go to the living room or in the kitchen. should I be putting him away in his cage and putting a cover on it ? He hates the cover and hisses at me. So I feel bad. But at the same time he is not getting a good nights sleep. Wow that sounds goofey. Please advise.