C is almost 7 months and has been waking up every hour or two at night for the last few weeks. I think it is because his crib mattress is harder than our bed, which he usually takes naps on. Are crib mattress toppers safe for his age? Do any of you use one and have any recommendations? I've seen some on Amazon, but don't really know what is best.

Otherwise... Any advice on getting out of this non sleeping crazy stage would be lovely! We're exhausted over here!