For years I have been buying pillows on a regular basis for my spouse and within 2-3 months flat flat flat. These pillows are FANTASTIC, AWESOME, and DO NOT go flat. I purchased 2 firm king size, and I have just ordered 2 standard size for myself. I would HIGHLY recommend these pillows. After a night sleeping on them they pop right back into shape and firmness. I like the idea also that they have a zip case to protect the pillows too. Going to get extras and keep them in case they run out of stock that is how good they are.). I compared the price of these pillows to the ones in the high end bedroom stores and the price is about $30-$40 PER PILLOW LESS than in the stores, so do yourselves a favor buy these don't bother with the bedroom stores, plus free shipping and straight to your door. Thank you Overstock for having the mind to sell these great pillows.