Location is excellent; service was superb as well but sleeping accommodations were sub-par especially for a 5-star property. The mattress was spent. Housekeeping tried many options to address the fact the mattress needed to be replaced. They simply did not replace it. We could not sleep well -- getting a proper night's sleep is one of the prime reasons to stay at a 5-star property. it could not have been too difficult to buy a new mattress or change the room--neither took place during our 4 day stay. We expressed our discomfort at the front desk; they had housekeeping add more padding to a flawed mattress. When we returned to the US, our chiropractor advised the back muscles were dislodged. We also got repeated calls from the hotel management but could not connect.