Your willingness to encourage free-roam is phenomenal – A lot of times, a lot of users will say free-roam is best but people are unable to accommodate that. You’re passionate to do it, so hopefully BB members will offer some good advice!
Free-roam is definitely a great way to encourage exercise. A part of Wick’s daily routine is zoomy-ing back and forth in my bedroom after he’s done digesting his morning veggies. and through free-roam exploration, he has found his sleep spot: http://www.instagram.com/p/BezRYaGhVIs/?taken-by=wick_theboogeyman http://www.instagram.com/p/Bdkm_vllDop/?taken-by=wick_theboogeyman
Rather than compromising his safe space, maybe try and coax him out by feeding him further and further away from the cage. Creating a station or stations around the free-roam space may encourage more traveling: http://www.instagram.com/p/BbHi4R2lg2C/?taken-by=wick_theboogeyman (One of 2 Wick stations in my apartment)
A potentially overlooked part of rabbit activity is how active the environment seems. On days where I just sit around, Wick follows suit. But if I’m going around, cleaning, vacuuming, or just exercising/crawling on the floor, he’ll be more likely to move around. Some times he’ll head to the bedroom, stop in the hallway, and look at me like “Hey, it’s time to go zoomy around the bedroom”, so I follow him and sit on the bed while he prances about everywhere.
Making the room more well-lit may help, as well as bringing some items that he’s familiar with (items from his cage) out may help too!
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.