Boori cot beds

[Mustbemadmandy]

Hi
I have my first baby due in April and have been looking at the Boori Sleigh cot bed in John Lewis. However I think this range has slightly different dimensions to standard cot beds so my question is...if anyone else has bought this can they please advise if I will then be stuck with buying only Boori sheets etc. it's only a few cm difference but I don't want to be limited to buying just one brand of expensive bedding.
Thanks

[SaucyMare]

i just bought a single flat sheet, and used that, as yes the sizes are odd.

But i loved mine, after 2 kids sold it good as new to a friend.