Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great buy! grandchildren love sleeping in them

I bought the cots for my two grandchildren, 3 and 4 years old. I had read the reviews and was a bit concerned regarding the 'hard ridge' that people mentioned. But I have to say, both my grandchildren love sleeping in them! They sleep well and do not seem to be bothered by any 'hard ridge'. I bought sleeping bags for the added fun, not because I felt it would make the bed softer. They are taking their naps on them even as I type this! I am very pleased with the cots and they are SO easy to store, which is big plus!!