Right now, DS either sleeps in his bouncer right next to the bed reflux or in his cosleeper in the bed. Thing is, I hate the cosleeper. I'd like to transition him to sleeping in our bed over the next month. My question is, we have a memory foam mattress topper over oursleep number mattress... Is it safe for LO to sleep on the memory foam? Or is it too hot, too soft, etc? TIA for any help you can offer!