Anyone got one? We have one, which has been good so far, but i've noticed there's a slight gap on one side of the mattress and the bed (about an inch). Is this the same for everyone? I'm thinking of getting a mattress topper too as the mattress is starting to sag slightly in the middle (it's a bit like a tight hammock system rather than a solid mattress). I'm just worried in the winter t might be a bit chilly as there is cold air under her when she sleeps... It is good for when she's sick, as it dries quicky; Just not sure it's the most comfortable and would like to know how to make her cot a bit more cosy!