Im not 100% sure but I remember thinking they looked different sizes when we looked.
I ended up getting one from mamas and papas just because i thought it looked a lot bigger and therefore may last until bubbs is a bit older than some of the smaller ones???
The sheets seem to fit though and i bought those from Toys r us so who knows???
sorry if that wasnt much help!
I think as long as u make sure the stand fits the basket it shouldnt matter.
Joanna 38 + 4 xxx
