I would never try to grab a sleeping bird, he probably would freak out, hurt himself. Years ago I had a parakeet that had a bad night fright, and all his tailfeathers broke off. the shafts were still in him, so we had to wait about 4 months until he molted them. during that time he could not fly at all because, no tail. We gave him extra attention. once he molted they quickly grew out, he was fine. and, he was 12 yrs at the time, old for a parakeet. as far as your bird, I would be gentle and talk softly to him, try to offer millet or other treat he likes, maybe just sit by cage and talk to him, maybe put the radio or TV on for him when you're gone to keep him company. that noise also will keep him less likely to get scared of noises outside. I have never used a net. I have heard of small birds getting seriously hurt, broken neck or wing. My birds at 1st did not want to go in cage at bedtime. chasing, grabbing does not work. a treat or an interesting toy in cage does. I have 5, they all go in the cage every night, no problem.