Reddit mentions of Mroobest Comsmart Collapsible Crinkle Cat Tunnel Tubes Toys 3 Way Fun Run Play Tunnels for Pets Kittens Rabbits

Not sure what your budget is or what type of cage you have but I used these type of wire cubes to built a bigger home for my bun. For ideas on how to make a door/entrance take a look at this thread from a few weeks ago.


You can also try to put mats against the wires so he doesn't chew the wires and gets a snack instead. If he doesn't pay much attention to the mats you can try what I do at times, I get the treats (see link below) and rub it against the mats so it's more a more appetizing snack.

A few other suggestions when you move and have bigger space:

• Tunnels - Options 1 - for this one just keep an eye on the hanging ball - my bun chewed right through the string to get rid of the ball but otherwise loves the tunnel, Option 2, Option 3
  
  Treats (recommended by her vet)
  
  I also agree with a lot of the suggestions here, I have the Living World Teach treat toy and my bun just loves it, though doesn't care for other toys but lives for cardboard boxes. Hope this helps!

Oh man I know some about this one - cat enrichment is a passion of mine, as well as cat training through positive reinforcement!! Cats DO NOT learn from or respond well to negative reinforcement (actually a misnomer, but basically 'punishment' or deterrents), and this might increase his anxiety. Definitely begin this process before baby gets here, as others have said! For you guys, enrichment will be the name of the game. Buckle up, and apologies for the long post....

Give him as many things to do at night as you can - puzzle feeders, try feeding him right before going 'in' for the night with a puzzle feeding bowl, lots of toys. Hide little stashes of food around so he has to 'hunt' for it; you can even make little scent trails. Feeding on a schedule, not leaving it down all the time, makes food much more high-reward and fun to discover. You can also leave worn shirts or bras of yours out, either next to his favorite sleeping spaces or even in them (like cat beds) so he has some 'momma smell' to comfort him when you're separated!!

Put the toys and food away during the day, except for his breakfast!! Night time can become a 'fun' time for him, but only if you do it very positively! Exiling him from the bedroom with negative stimuli (picking him up and carrying him out, chasing him out of the room, shutting the door right in his face) will reinforce the negative associations; try to get a toy that he will chase out and then shut the door once he's left of his own accord.

Some major things to think about are - active playtime, not passive play. These are things that move (either on their own battery-operated or because you drag/swing/point them), versus balls or toys that sit on the floor. Cats have a LOT more energy than we give them credit for! They have an absolutely huge hunting instinct, and get a lot of satisfaction out of using that. Try toys like battery operated laser pointer stand, ones that move with very little jostling, mice that he has to 'hunt'. Here are a few I've used - a butterfly on a wire, a mouse that goes around a track for about 7-8 minutes, a laser tower. You get the idea. None of these are perfect, but they will be new and fun! You might have to come back out a few times a night to turn them back on at intervals, but hey, you'll be up with baby or to pee anyways!! Again, put these away during the day so they are 'new' at night. You can also try cat tunnels like these for fun new territory to explore.

Speaking of territory, try to get him using his 'vertical space' (shelves on the wall, cat trees, etc) as much as possible with treats and catnip. More places to explore means more places to hide food and toys!

In general, look into as much 'fun stuff' at night as possible. He's definitely going to want to explore and get to know baby; this is normal and fine as long as it is safe. Babies actually benefit from contact with animals as it helps their immune systems!! I think that night time is definitely going to be your hardest bit, but just be as consistent as you can and start small. Start with just 15mins locked out, but again, have him chase a toy out and then have something high-value (treats, a favorite toy/game) out there to keep him occupied. Just keep building those positive associations with 'outside the bedroom' and make the bedroom as boring a place as you can for him!!!

Another good page with a lot of the same info, a little better worded haha!!