I haven’t ever gone free range, but Samantha’s out time and territory has expanded to include the entire apartment. Technically she was free range earlier this week since she wouldn’t come out from under the bed when I went to work. But she has an aversion to tiles, so is never in my kitchen or bathroom by choice.
My apartment took a lot of careful thought and arranging to bunny proof first. ie, I have lots of NIC cube fences around furniture she can get under, blocking off computer and TV cords, etc. At the moment there’s only one piece of wooden furniture I consider bad for her, but she avoids it. I don’t intend to go free range with her, but on my days off, I am less concerned about her being out for much longer periods of time, or even all day if I plan to stay home.
I guess my long-winded point is to make your home thoroughly bunny proofed first. Get down on the floor and look for small openings, access to weird opportunities like chewing the bottoms of couches and box springs to create holes for climbing up into. You won’t fit, but a bunny does this easily and can be hurt by stuffing ingested or pointy springs. Look for cords, items that can be pulled and fall. You want to avoid harm to a curious bunny through eating something bad, getting clunked in the head, or trapped somehow.
If you want to start slowly, consider an x-pen that can be set up just outside a room door, so it creates a larger space extending into a second room. They move easily, can change shape, and really provide a nice barrier. Most of our bunnies can get past a baby gate eventually unless it’s clamped to the walls firmly. I watched Spockie move one with his teeth and squeeze by like it was a car door.
I think bunny proofing is key. Then consider their needs: can they get back to the litter pan quickly and easily? Will they if in another room? Water too?