DS (28mths) will not keep his sleeping bag on now so I need to make the move to regular bedding. He is still in the cot and I plan on keeping him there as long as I can. He is only small for his age and is not climbing out yet so I don't see any reason to go to a bed yet. I haven't been putting anything on him the last few weeks as the nights have been so warm but it feels like tonight will be cooler so I think he will need something over him, probably just a sheet.
Any tips for keeping it on him or transitioning to regular bedding in a cot would be appreciated.