This topper is exactly what I was looking for. My little girl would sleep in her crib fine but didn’t like her bassinet until we got this cover. It’s not too thick but is thick enough to make the hard bassinet mattress comfortable. Definitely recommend!I wish I would have gotten this sooner. My first born never did very well with the bedside bassinet and I bought this when I was pregnant with my second. It has been greatI got Arm’s reach Co-sleeper bassinet from my sister. She got this bassinet while back when the babiesrus were closed down.I couldn’t find the right size topper(mattress) for it and even their products on their website are sold out. The mattress came with the bassinet seems ways too hard and I wanted a bit of more comfort for my baby.This mattress is made for some other bassinet brand but this fit perfectly in my bassinet.It’s perfect for newborn baby and comfyThe bassinet we ordered came with a hard flat mattress and my baby hated it. She refused to sleep in her bassinet. Once we got this she would sleep for hours.It was a little bigger than our bassinet but it was easy to cut the foam to fit the bassinet! If you want a little cushion for your baby please purchase this!Fits perfectly in the portable bassinet that was purchasedThis fit great in the bassinet and our mini pack and play. The extra softness allows our son to sleep betterGreat replacement for my Bassinet. The mattress is a little on the softer side if that is what you're looking for.