Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Beware of the SLOW LEAK....

Second Aero minutebed sport Queen that I've purchased and both have slow leaks both stay inflated for about an hour an than I have to re-inflate....CANNOT FIND THE LEAKS IN EITHER BED!....also Warranty is Not the Best;have to send back (cut out) bed valve to get replacement bed (which means more $$ for shipping costs).