I have a 14 month old daughter. We have been using a portacot right up till now for her.. she hated it the last couple of months so we had her in our bed (I know that's terrible). Anyway I'm desperate to get her to start sleeping on her own. Would you recommend I buy a toddler bed or a cot for her? She walks, climbs etc, and at night does a 'snow flake' move all around the bed. She'sa tall girl for her age.