In the summer when my room is warm I give my larger snakes(500g+) some free roam time around my room. Let me say first that my room has no vents, no cracks, no where for them to escape... I usually give em an hour or two depending on what theyre doing. The majority of my snakes will just keep moving from one side of the room to the others and then I have one who the majority of the time will find a nice dark place and chill. I dont give her the free roam option very much bc she usually just chills so theres no real point in letting her roam. The other ones seem to enjoy it and I think thats why when I go into the snake room at night theyre all climbing to the tops of their tubs wanting out. I think its good for the snakes as long as they dont get loose! I dont reccomend this for anyone who doesnt have a snake proof room... Youd be surprised some of the places they can get themselves into.... This is the primary reason I dont let any little ones out bc Id prolly never find em.