I’m just coming back from checking on my sleeping 2.5yo. Now he’s turned 90degrees, taking up most of the considerable width his bed provides.
My children all use a lot of space while sleeping, turning this and that way. None of them can sleep in a standard 90x140cm bed size that’s standard for smaller children. These beds are useless for us.
My 3 year old is in a toddler bed and she's fine even if she rolls into the sides. She isn't bothered by it. She sleeps mostly fine. Her crib converts into a toddler bed (current state) then a full size bed. It seems like a giant leap but I think she'll love the space... Not out of necessity but because it's fun.
I'm looking forward to when mine switches out of his crib to a twin sized floor bed because I finally might be able to get some cuddles in. It might also make it easier for times he's sick. He doesn't like sleeping in our bed (for now - I'm sure those days are coming).