Room temperature was unbearable too warm to sleep, previous guest hair was in the bath tub. When checking out the hotel employee ask if our stay was okay, I responded "no" and he responded "was your room too warm?" I said yes and he said didn't anyone tell you? I responded, tell me what? He said the hotels HVAC is in winter mode we have no air conditioning. At no point during check in did any Hilton employee say anything about NO AC. Very disappointed with Hilton, would not recommend Hilton properties in the future, our worst stay ever. Another insult was paying for 4 guests and receiving one $10 credit toward cocktails, also thanks for the 2 bottles of water for 4 guests!!