Sleeping in travel cot

Is it okay for my 7 month old to sleep in her travel cot every night?? It has a proper mattress not just the cardboard! She was waking lots in her next to me and still the same in the big cot in her own room but slept sooo well in travel cot during hols so I have put her in travel cot in her own room last few nights and she is sleeping through or only waking once 😍😍 Ive realised she must prefer the space as she does 360 rolls and 180 pivots etc- has about a million positions through the night to get comfy and sleeps so well! But is this okay?? She is very long. The big cot wouldnt allow her to pivot the other way which I think must be what was causing her to cry and wake