Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
Not a bad mattress for the price, got me through my first backpacking adventure.  However, it is nearly impossible to inflate by mouth and most certainly requires a pump which I also purchased.  I found it to be really firm but that could be remedied by deflating slightly.  Overall it doesn't weigh very much but coupled with the pump occupies a fair amount of pack space and takes forever to deflate.  But let's be honest, it can be had for about $8, good solution for the frugal buyers out there willing to accept some trade-offs.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: C: neutral