Anyone ever tried it and of so how long did they still fit? Am in the which double/triple buggy dilemma stage (2 yr old and twins due nov) and got to wondering whether I could just pop them both in my single carry cot for 3 months or so then get a lighter weight buggy or phil n teds or something. All the other proper twin doubles seem either heavy or wide! There's no perfect one. What do you think? Would that work?