Hi, my brother and SIL had their first baby last week and when I asked if there was anything I could buy as a gift they said an activity mat. I don't have children so have no idea what to look for in a good activity mat. I've Googled a few, they seem bloody expensive! Also just when I find one with lots of good reviews there's always a couple of reviews that say their baby nearly choked on something which scares the crap out of me. Oooh the weight of responsibility I feel buying a damn play mat! Please help this clueless new auntie. Thank you.