Bigger/thicker mattress for travel cot - where can I get one?

[KorrallKrabba]

Inspired by: this thread

where (online + reliable) can you get one of these from. We use our travel cot a lot, so I think it would be worth it.

babymattressesonline are good, got a cot mattress and bed mattress from them for dd.

ebay

i got mine from babies r us.

Brilliant. Thanks all - I've been looking around off and on in my local places (Mothercareworld and Babies R Us) and not seen anything quite the thing in stock.

That new ebay one looks ideal Clairey - have you used that store?